TACZ: Magazine And Casing

Update

• FOV (first-person only) now affects shell casing spawn to provide more precise spawn position, so FOV > 70 is recommended (it is the best way to fit first person view because FOV do not affect render for guns and arms)
• Gun tilt can affect ejection angle
• Add replacement option for shell casings
• Add fallback for guns have no "shell" data in display file
• Add fallback for "tacz:ai_awp" and other guns which have spell mistakes "magzine" in their models
• Fix bullet rendered in replaced magazine

Known issue

• Guns which have special loading cannot spawn casings as expected (mk23, dp12, etc)
• Sniper reload should be reworked
• The arms have a higher rendering priority, so casing spawn looks odd when in the slide pose.