[FEATURE] Video player in backend (i) window

Allow video and audio playback in the backend (i) element
information window.

Uses the new introduced RenderingRegistry to find a matching
rendering class (#61800).

Brings default letter box background color for <Video> tags.

Resolves: #61668
Releases: master
Change-Id: I7c01fbaf2258b4e7c6f10da0e6438bdc55d12197
Reviewed-on: http://review.typo3.org/32816


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>