Combine animations when two entities interact

[avelitj12]

Rather than have generic animations that may not necessarily line up (example, one entity hitting another), we want to have actions cause both entities to enter animations that line up properly, so a punch connects and the target reacts accordingly.

How to accomplish this is unknown at the moment, but there is a current thought on how:

1. Entity animations are made specific and can reference the position of the other entity to effectively line them up frame by frame (create both animations in blender together, but export separately)

The goal is to have a look and feel like animations from games like The Last of Us: https://youtu.be/0IHKOsFGrHs

[avelitj12]

Kind of did this in #8 by moving a rotating the player to have the punch animation roughly connect with the enemy model. This ticket is meant to refine/improve that