ControlRig: Support for comment blocks
Comments were not part of the MVC layer - this change is adding them back in.
#rb none
Merging
//Tasks/Fortnite/Dev-UEA-ControlRig/...
to //Fortnite/Main/Dev-UEA-ControlRig/...
#ROBOMERGE-OWNER: lina.halper
#ROBOMERGE-AUTHOR: helge.mathee
#ROBOMERGE-SOURCE: CL 6685421 via CL 6752148 via CL 6752571
#ROBOMERGE-BOT: ANIM (Main -> Dev-Anim) (v365-6733468)
[CL 6795234 by helge mathee in Dev-Anim branch]