-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)

-fixed the model turning into a ball when chat is opened

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

-fixed broken ragdoll joints (knees and ankles bending the wrong way)

-improved animations and c_arms

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