- Added `hasGravity` option for projectiles
- Added `velocityScalar` option for projectiles
- Added `arrowKnockbackModifier` option for arrows
- Added `arrowPierceModifier` option for arrows
- Added `arrowDamageModifier` option for arrows
- Added `arrowAllowPickup` option for arrows
- Added some tests for the `PermissionController` class