Merge pull request xbmc#93 from AlwinEsch/Nexus-changes

[Nexus] API related update

Merge pull request xbmc#81 from AlwinEsch/Nexus-change

[Nexus] API related update

Merge pull request xbmc#80 from AlwinEsch/Matrix-change

increase version to 19.0.2 (translations)

Merge pull request xbmc#71 from AlwinEsch/Nexus-change

[Nexus] remove ftgl use, seems no more supported in projectm and unused

Merge pull request xbmc#70 from AlwinEsch/Matrix-change

[Matrix] remove ftgl use, seems no more supported in projectm and unused

Merge pull request xbmc#64 from AlwinEsch/Nexus-change

[Nexus] initial release change for new Kodi 20 Nexus version

Merge pull request xbmc#63 from AlwinEsch/Matrix-change

[Matrix] final Matrix change to correct test builds and take as Version 19.0.0

Merge pull request xbmc#50 from AlwinEsch/Matrix-change

[Matrix] increase version to 3.3.0 (API related)

Merge pull request xbmc#49 from AlwinEsch/Matrix-change

[Matrix] API related update and libprojectm to version 3.7

Merge pull request xbmc#48 from AlwinEsch/Matrix-change

[Matrix] API change update and cleanups