-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

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

-slightly improved the way footsteps are handled in multiplayer (your footsteps would play twice at a time in multiplayer. Fixed partially, now your footsteps don't play twice, but you can still hear other players still emit footsteps twice)

-sound effects compressed (from .wav to .mp3 files)

-animation improvements
-smoothed out animation transitions
-texture fixes
-improved weightpainting on c_arms

-added panicked running animations for zeta bots
-death animation does not loop anymore

-added procedural helper bones to c_arms, massively improving the arm rotation around the wrists when using certain weapons.

-added more sound effects