In base vertex and pixel shader pass, uniform variable OutputVelocityBuffer is tested to ouput or not velocity data
Configurable per project and/or per platform (r.BasePassOutputsVelocity)
#rb krzysztof.narkowicz
[FYI] anthony.bills
#ROBOMERGE-OWNER: ryan.vance
#ROBOMERGE-AUTHOR: mickael.gilabert
#ROBOMERGE-SOURCE: CL 5810274 via CL 5813280 via CL 5813281
#ROBOMERGE-BOT: DEVVR (Main -> Dev-VR)
[CL 5844314 by mickael gilabert in Dev-VR branch]