[Implemented] Plex Media Player for Linux support

[OttoKerner]

Plex Media Player packages for Linux

Hello Plex users! Because there is no official packages of Plex Media Player for Linux desktop I have decided to create one. Instead of building multiple packages for all different packaging systems (DEB, RPM, Snap, Flatpack) and even different distribution releases (separate DEB for Ubuntu Trusty, separate DEB for Ubuntu Xenial,…) I wanted to make things as simple as possible for us Linux users. So I’ve used an AppImage format for this. AppImage is universal package format that runs on any m…