Move to logging rather than print statements

Throwing this out for discussion.... I've been using this on a local branch for awhile now to debug and troubleshoot issues. Rather than using print statements, I'd suggest we move to using logging throughout.
Threadsafe way of generating output, also avoids line buffering issues with print statements.
Allows for redirection of the logging stream to one or more locations depending on platform (docker and systemd users to stdout, Windows\Mac to a logfile, etc).
We can significantly suppress (or enhance) the amount of logging generated if desired via logging levels.
For example, here's what a startup, session start, and session end looks like when converted to logging at a debug level. (This includes -nostats -hide_banner args to ffmpeg to quiet it down a bit as well).
2020-09-17 02:15:28,897:DEBUG   :locast2plex:MainThread - Reading config file from /app directory.
2020-09-17 02:15:28,898:DEBUG   :locast2plex:MainThread - Enumerating config file...
2020-09-17 02:15:28,898:DEBUG   :locast2plex:MainThread - Got option locast_username - *************
2020-09-17 02:15:28,898:DEBUG   :locast2plex:MainThread - Got option locast_password - *************
2020-09-17 02:15:28,898:DEBUG   :locast2plex:MainThread - Got option override_zipcode - *****
2020-09-17 02:15:28,898:DEBUG   :locast2plex:MainThread - Got option plex_accessible_ip - 10.10.12.98
2020-09-17 02:15:28,898:DEBUG   :locast2plex:MainThread - Got option plex_accessible_port - 6077
2020-09-17 02:15:28,898:DEBUG   :locast2plex:MainThread - Got option bytes_per_read - 1152000
2020-09-17 02:15:28,898:DEBUG   :locast2plex:MainThread - Got option tuner_count - 3
2020-09-17 02:15:28,898:DEBUG   :locast2plex:MainThread - Got option reporting_model - HDHR3-US
2020-09-17 02:15:28,898:DEBUG   :locast2plex:MainThread - Got option reporting_firmware_name - hdhomerun3_atsc
2020-09-17 02:15:28,898:DEBUG   :locast2plex:MainThread - Got option reporting_firmware_ver - 20150826
2020-09-17 02:15:28,898:DEBUG   :locast2plex:MainThread - Got option concurrent_listeners - 10
2020-09-17 02:15:28,898:DEBUG   :locast2plex:MainThread - Got option uuid - khmzitov
2020-09-17 02:15:28,898:INFO    :locast2plex:MainThread - Locast2Plex v0.5.2
2020-09-17 02:15:28,899:INFO    :locast2plex:MainThread - Tuner count set to 3
2020-09-17 02:15:28,899:INFO    :locast2plex:MainThread - UUID set to: khmzitov...
2020-09-17 02:15:28,899:INFO    :LocastService:MainThread - Logging into Locast using username *************...
2020-09-17 02:15:29,385:INFO    :LocastService:MainThread - Validating User Info...
2020-09-17 02:15:29,730:INFO    :LocastService:MainThread - User Info obtained.
2020-09-17 02:15:29,730:INFO    :LocastService:MainThread - User didDonate: True
2020-09-17 02:15:29,730:INFO    :LocastService:MainThread - User donationExpire: 2020-09-18 05:33:02
2020-09-17 02:15:29,730:INFO    :LocastService:MainThread - Getting user location...
2020-09-17 02:15:29,731:INFO    :LocastService:MainThread - Getting location via provided zipcode *****
2020-09-17 02:15:30,070:INFO    :LocastService:MainThread - Got location as Phoenix - DMA 753 - Lat\Lon ******\******
2020-09-17 02:15:30,071:INFO    :LocastService:MainThread - Getting list of stations based on DMA...
2020-09-17 02:15:32,146:INFO    :LocastService:MainThread - Loading FCC Stations list...
2020-09-17 02:15:32,380:INFO    :locast2plex:MainThread - Starting device server on 10.10.12.98:6077
2020-09-17 02:15:32,384:INFO    :locast2plex:MainThread - Starting SSDP server...
2020-09-17 02:15:32,384:INFO    :locast2plex:MainThread - Locast2Plex is active and listening...
2020-09-17 02:15:32,394:INFO    :SSDPServer:MainThread - Registering upnp:rootdevice (http://10.10.12.98:6077/device.xml)
2020-09-17 02:15:33,843:DEBUG   :SSDPServer:MainThread - SSDP command M-SEARCH * - from 10.10.12.99:37185
2020-09-17 02:15:33,843:DEBUG   :SSDPServer:MainThread - with headers: {u'host': u'239.255.255.250:1900', u'st': u'upnp:rootdevice', u'mx': u'5', u'man': u'"ssdp:discover"'}.
2020-09-17 02:15:33,843:DEBUG   :SSDPServer:MainThread - Discovery request from (10.10.12.99,37185) for upnp:rootdevice
2020-09-17 02:15:33,843:DEBUG   :SSDPServer:MainThread - Discovery request for upnp:rootdevice
2020-09-17 02:15:33,844:DEBUG   :SSDPServer:MainThread - send discovery response delayed by 4s for uuid:khmzitov::upnp:rootdevice to ('10.10.12.99', 37185)
2020-09-17 02:15:37,849:INFO    :LocastService:Thread-10 - Getting station info for 1571434912373...
2020-09-17 02:15:38,217:INFO    :LocastService:Thread-10 - Determining best video stream for 1571434912373...
2020-09-17 02:15:38,482:INFO    :LocastService:Thread-10 - Found 3 Playlists
2020-09-17 02:15:38,482:INFO    :LocastService:Thread-10 - 1571434912373 will user 1280x720 resolution at 2700000 bps.
2020-09-17 02:15:38,482:INFO    :locast2plex:Thread-10 - 10.10.10.167 - HTTP/1.0 - [17/Sep/2020 02:15:38] "GET /watch/1571434912373 HTTP/1.1" 200 -
2020-09-17 02:15:38,489:DEBUG   :locast2plex:LoggingThread-11 - Starting thread for subprocess logging.
2020-09-17 02:15:39,493:INFO    :locast2plex:Thread-10 - [hls,applehttp @ 0x555bc8b76fc0] Opening 'https://phx.locastnet.org/proxy/phx/src.ts' for reading
2020-09-17 02:15:39,493:INFO    :locast2plex:Thread-10 - [hls,applehttp @ 0x555bc8b76fc0] Opening 'https://phx.locastnet.org/proxy/phx/src.ts' for reading
2020-09-17 02:15:39,494:INFO    :locast2plex:Thread-10 - Input #0, hls,applehttp, from 'https://phx.locastnet.org/proxy/phx/variant/source.m3u8':
2020-09-17 02:15:39,494:INFO    :locast2plex:Thread-10 - Duration: N/A, start: 91773.977956, bitrate: N/A
2020-09-17 02:15:39,494:INFO    :locast2plex:Thread-10 - Program 0
2020-09-17 02:15:39,494:INFO    :locast2plex:Thread-10 - Metadata:
2020-09-17 02:15:39,494:INFO    :locast2plex:Thread-10 - variant_bitrate : 0
2020-09-17 02:15:39,495:INFO    :locast2plex:Thread-10 - Stream #0:0: Video: h264 ([27][0][0][0] / 0x001B), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], Closed Captions, 30 fps, 30 tbr, 90k tbn, 60 tbc
2020-09-17 02:15:39,495:INFO    :locast2plex:Thread-10 - Metadata:
2020-09-17 02:15:39,495:INFO    :locast2plex:Thread-10 - variant_bitrate : 0
2020-09-17 02:15:39,495:INFO    :locast2plex:Thread-10 - Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp
2020-09-17 02:15:39,495:INFO    :locast2plex:Thread-10 - Metadata:
2020-09-17 02:15:39,495:INFO    :locast2plex:Thread-10 - variant_bitrate : 0
2020-09-17 02:15:39,496:INFO    :locast2plex:Thread-10 - Output #0, mpegts, to 'pipe:1':
2020-09-17 02:15:39,496:INFO    :locast2plex:Thread-10 - Metadata:
2020-09-17 02:15:39,496:INFO    :locast2plex:Thread-10 - encoder         : Lavf58.12.100
2020-09-17 02:15:39,496:INFO    :locast2plex:Thread-10 - Stream #0:0: Video: h264 ([27][0][0][0] / 0x001B), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 30 fps, 30 tbr, 90k tbn, 90k tbc
2020-09-17 02:15:39,496:INFO    :locast2plex:Thread-10 - Metadata:
2020-09-17 02:15:39,496:INFO    :locast2plex:Thread-10 - variant_bitrate : 0
2020-09-17 02:15:39,497:INFO    :locast2plex:Thread-10 - Stream #0:1: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp
2020-09-17 02:15:39,497:INFO    :locast2plex:Thread-10 - Metadata:
2020-09-17 02:15:39,497:INFO    :locast2plex:Thread-10 - variant_bitrate : 0
2020-09-17 02:15:39,497:INFO    :locast2plex:Thread-10 - Stream mapping:
2020-09-17 02:15:39,497:INFO    :locast2plex:Thread-10 - Stream #0:0 -> #0:0 (copy)
2020-09-17 02:15:39,497:INFO    :locast2plex:Thread-10 - Stream #0:1 -> #0:1 (copy)
2020-09-17 02:15:39,498:INFO    :locast2plex:Thread-10 - Press [q] to stop, [?] for help
2020-09-17 02:15:39,498:INFO    :locast2plex:Thread-10 - [https @ 0x555bc8b81140] Opening 'https://phx.locastnet.org/proxy/phx/src.ts' for reading
2020-09-17 02:15:45,624:INFO    :locast2plex:Thread-10 - [https @ 0x555bc8b81140] Opening 'https://phx.locastnet.org/proxy/phx/src.ts' for reading
2020-09-17 02:15:51,643:INFO    :locast2plex:Thread-10 - [https @ 0x555bc8c14e80] Opening 'https://phx.locastnet.org/proxy/phx/variant/source.m3u8' for reading
2020-09-17 02:15:51,644:INFO    :locast2plex:Thread-10 - [https @ 0x555bc8b81140] Opening 'https://phx.locastnet.org/proxy/phx/src.ts' for reading
2020-09-17 02:16:03,489:INFO    :locast2plex:Thread-10 - [https @ 0x555bc8c14e80] Opening 'https://phx.locastnet.org/proxy/phx/variant/source.m3u8' for reading
2020-09-17 02:16:03,489:INFO    :locast2plex:Thread-10 - [https @ 0x555bc8b81140] Opening 'https://phx.locastnet.org/proxy/phx/src.ts' for reading
2020-09-17 02:16:03,490:INFO    :locast2plex:Thread-10 - [https @ 0x555bc8c14e80] Opening 'https://phx.locastnet.org/proxy/phx/variant/source.m3u8' for reading
2020-09-17 02:16:03,490:INFO    :locast2plex:Thread-10 - [https @ 0x555bc8b81140] Opening 'https://phx.locastnet.org/proxy/phx/src.ts' for reading
2020-09-17 02:16:09,697:INFO    :locast2plex:Thread-10 - Caught broken pipe, terminating ffmpeg.
2020-09-17 02:16:09,698:DEBUG   :locast2plex:Thread-10 - Calling log reader stop...
2020-09-17 02:16:09,698:DEBUG   :locast2plex:Thread-10 - Setting flag to stop logging thread.
2020-09-17 02:16:09,698:DEBUG   :locast2plex:Thread-10 - Calling log reader join...
2020-09-17 02:16:09,715:DEBUG   :locast2plex:LoggingThread-11 - Kill flag recieved, exiting logging thread.
2020-09-17 02:16:09,716:DEBUG   :locast2plex:Thread-10 - Breaking busy loop...
2020-09-17 02:16:09,716:DEBUG   :locast2plex:Thread-10 - Cleanup - ffmpeg process already terminated.
tgorgdotcom / locast2plex

Move to logging rather than print statements #91
