Fix counter for keyboard rotation of avatar

[DanGrise]

Fixed keyboard avatar rotation/ HP bar color

• Avatar counter stops when we reach the limit
• HP bar color is better (Ben will still make better, so not closing the issue)
• Documented the logic for finding the head in the Zcam

Closed by a6b7a925523cf5f050e85a443e79a2e48b2b71c0