Seperated character collision update in two:
- collision center update
- collision height update

Only collision center updates cause Unity trigger events to reset (thus
sending multiple successive OnTriggerEnter events).
Updated Vault prefab so that trigger volume covers the obstacle to vault
over.
Combined with an 'immediate' action, even if the player missed the
best timing to trigger the action, he can still do it once blocked by
the obstacle.
Updated Vault area Prefabs.

Reduced Player Villain Character collision radius from 0.35 to 0.3, to
reduce character floating in mid air after vaulting (a rework of the
vault anim would help a lot).

Vault action is now marked as immediate.
No idea why, but some Wii memory setup flags have been changed.
Tweaked character anim controller, especially reduced Dive and Vault
anim speed.