Revamp video player click settings

[bp2008]

Currently, video player click/doubleclick is only configured via this one setting:

The timeline tab is logically grouped together with "Live View". But some people want single clicks on the timeline tab to pause and unpause the video. Logically they would want double clicks to switch cameras.

I think this will require a small settings revamp. The above setting will go away. Current behavior should be migrated to the new settings.

Video Player
  > Live View
    > Single Click: Maximize/Unmaximize Camera.
    > Double Click: None
  > Clips
    > Single Click: Play/Pause
    > Double Click: Fullscreen
  > Timeline
    > Single Click: Maximize/Unmaximize Camera.
    > Double Click: None