Add UEFN Control Rig to Game Animation Sample. Fix animations in sequencer with additive Control Rig

**DUPLICATE/COPY Base animation before fixing it with control rig to prevent base anim from accidentally being edited**

In this video I convert the Manny 5 Control Rig to be a UEFN Control Rig and I use that to fix a punching animation to extend the reach of the punch.

UEFN boxing animations: https://drive.google.com/drive/folders/1kowqfKBej50DburdGHKwWmcS7qAzNF-J?usp=drive_link