Custom Gun Continued

• Add shooter config CreativeModeInfiniteFeed
• Add sync config EnableSprintWhileShooting, EnableSprintWhileAiming, EnableSprintWhileReloading
• Enable sprint while shooting by default
• Fixed terrain reducing scope division brightness

1.21.6+:

• Fixed automatic opacity filling for gun model text

26.2+:

• Fixed laser not being culled inside the scope
• Fixed scope division not illuminated

For Developer:

• Implement ResourcePojo#copy and replace manually copying with it