Fixed "M2_C_R_Barrel" issues involving Bayonets and Extention

Adjusted physics for custom casings

- Added "Skull_Crushers_N", includes a variant with a scrolling texture. Old model still available but won't be represented in quartermaster

- Adjusted "Spiral" shaders to show up in the character menu

Minor fix for M2-C Casings

XM-80:
- Minor changes to stats
- Added Grips attachments that integrate better with the standard Barrel
- Added "XM-80-CG" comes with an integrated grip, changes to the model include a longer receiver to address issues breach object, and a larger mag release

Added "Xm_80" and "XM_80_C"
- 2 bases
- 2 barrels
- 2 mags
- A new firing sound
- 1 extension/bayonet
M2:
-Altered stats and value
-Changed names of Objref and Madcard. both of which have been given the "M2_C" designation for Carbine

Fixed issues with "Officer Sword S"

-Fixed issues with B_Extensions
-Adjusted Addongroups
-Added "Micro_Laser" and an (S) Variant

Added firing sounds for "R_Carbine"

Added "Revolver Carbine":
- 1 Base
- 1 barrel
- 1 mag
- Several Stock Variants, Standard, W/Ammo Carrier: on each side and double sided
- New Projectile "R_Carbine_Projectile"
- New Casing "R_Carbine_Casing"
Along with several things WIP