Make it a lil easier to restrict what can go in a cannon (#21093)

Resources/Prototypes/Entities/Objects/Weapons/Guns/Projectiles/arrows.yml

@@ -35,6 +35,7 @@
   - type: Tag
     tags:
     - Arrow
+    - CannonRestrict
   - type: Projectile
     deleteOnCollide: false
     onlyCollideWhenShot: true

Resources/Prototypes/Entities/Objects/Weapons/Guns/pneumatic_cannon.yml

@@ -35,7 +35,7 @@
     capacity: 30
     blacklist:
       tags:
-        - Arrow
+        - CannonRestrict
   - type: Appearance
   - type: ItemMapper
     containerWhitelist: [gas_tank]

Resources/Prototypes/tags.yml

@@ -235,6 +235,9 @@
 - type: Tag
   id: CanPilot
   
+- type: Tag
+  id: CannonRestrict
+
 - type: Tag
   id: CannotSuicide