Game: Correct scale for bounding box hand.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS15]$/Atomix;C39597
Game: Ability to switch between left/right hand in hand tracking.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS15]$/Atomix;C39598
Game: Reset debug text in each Update.

git-tfs-id: [https://tfs.codeplex.com:443/tfs/TFS15]$/Atomix;C39599