Instream to forward fullscreen events. [Fixes #80675668]

Note: this reverts https://github.com/jwplayer/jwplayer/commit/5fdf322dc7693df75cf03b033986ffc12d5585bb
Fix for play() api after instream ad completes [Fixes #77384872]
Merge pull request #195 from jwplayer/bugfix/vast-cbar

Instream to forward fullscreen events. [Fixes #80675668]