1.12.Seated Overhaul - 04/08
Converted the seated mode to work off of initial camera relative
transform and the wanted relative transform to the seat parent.
Generally using it should involve passing in an identity (null) transform
to the target transform (when sitting down, the exit location when standing up) and the current Camera Relative Transform to the
InitialCameraRelTransform field.
This makes seated more much more flexible while also solving some specific problems with the old method.
The latest template is converted to use its new version.