Fix Landing Behaviors
How to Verify: The avatar should now land on the ground from jumps as in PotS. Therefore, standing jumps produce a full landing, downhill jumps produce a blended landing based on how far down the avatar fell, and uphill jumps produce no landing.
The bounds type test was performed on stale bounding data from the previous
frame resulting in the avatar being drawn without textures for a frame after
switching from 1st to 3rd person camera.