Added video view
Added Renderer
Added youtube helper
Added Video player activity
Added builder for renderer
Added ExoPlayer wrapper
Added Video property
Changed ExoPlayer to the wrapper and added video choices
Added video page descriptor
Added video list item and holder
Tidyup video player activity
Tidyup property
Added video list item in view
Added spinner to layout
Handle video link
Tidyup
Handle single external link for video
Changed asynchttpclient as a dependency
Added exoplayer as submodule
Updated dependency for exoplayer