-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

-Adjusted phong shading values

-Weightpainting improvements on c_arms

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

-fixed c_arms spikes being detached and floating in the air