HTML5 video support

initial start for the html5 video support program
resolved video playlist error
centered video
some edit
video element
Added resource file
responsive video element
playlist titles edit
Scrollable Playlist
Fullscreen video player with collapsable playlist
Toggle full screen for video player

Full screen button is working well for video files (only video and
controls are visible on full screen mode)
added HTML5 video full screen reference
Full screen for audio
Did changes for fullscreen
Fullscreen mode
removed alerts

Commented alerts and changed them into console logs.
Merge pull request #2 from NamilD/HTML5-video-01

Html5 video 01