Added NPCs and custom sitting animations! Also updated the normal maps.

Modified the shaders of Audie's glasses and fixed a lighting issue in the mouth caused by incorrect vertex normals.

Fixed the seams issue! Didn't know Audie had them but I fixed them.

Small fixes:

* Model normals edited to remove sharp edges that I didn't see, but some seams aren't fixed yet.
* Fixed tail bone on the playermodel causing it to move strangely.
* Added the mouth to the collision model of the ragdoll so it can be posed.

Also, happy birthday Audie, by coincidence.

Initial addon creation.