Changed package names to match folder structure

[aliyakamercan]

fixes #555

• all packages match the directory structure
• only single package per file
• fixes imports per package changes
• I think there is some more work in terms of moving stuff around & splitting things into multiple files.

@DanSimon @benblack86 @dxuhuang @jlbelmonte @amotamed @nsauro

[codecov-io]

Codecov Report

Merging #566 into develop will decrease coverage by 0.06%. The diff coverage is 100%.

@@             Coverage Diff             @@
##           develop     #566      +/-   ##
===========================================
- Coverage    84.75%   84.69%   -0.07%     
===========================================
  Files           98       98              
  Lines         4422     4422              
  Branches       349      350       +1     
===========================================
- Hits          3748     3745       -3     
- Misses         674      677       +3

Impacted Files	Coverage Δ
...rc/main/scala/colossus/service/ServiceClient.scala	94.4% <ø> (ø)	:arrow_up:
.../colossus/protocols/redis/RedisCommandParser.scala	100% <ø> (ø)	:arrow_up:
...in/scala/colossus/service/AsyncServiceClient.scala	100% <ø> (ø)	:arrow_up:
...protocols/http/streaming/StreamingHttpClient.scala	100% <ø> (ø)	:arrow_up:
.../main/scala/colossus/protocols/telnet/Telnet.scala	80% <ø> (ø)	:arrow_up:
...rc/main/scala/colossus/controller/Controller.scala	84.61% <ø> (ø)	:arrow_up:
...la/colossus/protocols/redis/RedisClientCodec.scala	80% <ø> (ø)	:arrow_up:
.../scala/colossus/metrics/senders/LoggerSender.scala	0% <ø> (ø)	:arrow_up:
...rc/main/scala/colossus/core/server/ServerDSL.scala	85.71% <ø> (ø)	:arrow_up:
...cala/colossus/metrics/senders/OpenTsdbSender.scala	0% <ø> (ø)	:arrow_up:
... and 69 more

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