Creating avatar and adding animations

[Dennis-Nesterenko]

Includes -Updated human avatar with set up humanoid rig

• Run and walk animations
• Punch, throw, and interact animations
• Breathing animation

Animations were tested and are functional in Unity

[stilnat]

There's some mismatch between the in game rigs and those animations warnings upon import, also the animations do not work on the prefab. I would advise avoiding importing animations on their own at this point, we need to fix as a whole the current issues with the prefab and the inability to animate it.

[cosmiccoincidence]

Once any issues are worked out, we need to make sure these make it onto the art repo as well.

[stilnat]

closing this one as PN made a PR for my branch with the same animations, I'll make a PR including those animations and more soon.