Follow up from https://github.com/excaliburjs/Excalibur/issues/3121

## Changes:

- CollisionContact can be biased toward a collider by using `contact.bias(collider)`. This adjusts the contact so that the given collider is colliderA, and is helpful if you 
are doing mtv adjustments during precollision.

---------

Co-authored-by: Erik Onarheim <[email protected]>