Separate DLNA_DMR and DLNA_DMS devices

[StevenLooman]

The DLNA standard specifies four device types (see the Wikipedia page on DLNA):

• DMS: Digital Media Server
• DMR: Digital Media Renderer
• DMC: Digital Media Controller
• DMP: Digital Media Player

At this moment netdisco discovers DMS and DMR devices as one, named DLNA. Currently, Home Assistant is - as far as I know - only interested in DMR devices (as per https://github.com/home-assistant/home-assistant/pull/14749). The component in home-assistant now needs to detect if the device is a DMR device.

If these device types are separated, home-assistant becomes less 'polluted' with checks for proper device types. Also, introducing a DMS component to home-assistant would not work with discovery, as the DLNA_DMR component already 'catches' the DLNA discoveries.

Also, there are 4 DMS and 3 DMR versions. Currently only version 1 of both is discovered. This pull request makes netdisco support the other versions.

Please do inform me before merging (and releasing) this! The DLNA_DMR component in home-assistant + discovery has to be updated as well.

[balloob]

Thanks!

ok to merge when lint addressed and PR for Home Assistant created 👍

[balloob]

Released as netdisco 2.0.0