added table and fixes

+table view
fix upload description
removed management with MahApps Metro

removed old version of management ui, new version is called ModernUI.
new video player

+PlayVideo dialog
modified commentbox style
some changes
updated upload and co
buttons with features
comment fixes

fixed some stuff in video commentsystem
added ffmpeg converter
some video modifications
changes for commentbox system
Added special callpoint for usermanagementservice
Comment stuff and some other stuff
changed video view and added comment type
added profile picture and stuff
Added user stuff and moved settings stuff
changed theming stuff and so on
theming stuff
Design stuff bottombar
added presence basic and added bottombar stuff
added calendar for month