Mezzmo addon UPnP/DLNA client

I've created an updated release of the Mezzmo Kodi addon.  This version automatically detects the uPNP  server software type and will adjust accordingly to disable Mezzmo specific integration enhancements.  I've tested this version with a number of uPNP servers including Mezzmo, Kodi, SiliconDust and Playon.  All worked as expected except PlayOn, which seems to have some proprietary uPNP usage.  This addon serves up video, music and pictures from uPNP sources.  It also has a uPNP discovery tool which will find all uPNP servers on your network.

Note, this version is for Kodi 19 and higher.  If there is enough interest I can update the current Kodi 18 version for improved multi-server uPNP support.

Feedback welcome.

Jeff