-Added rimlighting for more realistic lighting

--Shared update across most of my playermodels--

Finally fixed the issue of multiplayer footsteps playing both normal and custom ones at the same time on clients

-Improved illumination position for c_arms

-Adjusted phong shading values

Shared update across all of my playermodels:
-Footsteps will no longer keep playing when the player is dead

-added smile facial flex
-improved aiming (head rotation)
-improved texture coloring

-removed unused texture