Add gimbal and gyroscope, allowing more fine tuned projectile control

src/Dodge/Data/ComposedItem.hs

@@ -29,6 +29,7 @@ data ComposeLinkType
     | AugmentedHUDLink
     | FunctionChangeLink
     | MakeAutoLink
+    | ProjectileStabiliserLink
     deriving (Eq, Ord, Show, Read)
 
 data ItemStructuralFunction
@@ -52,6 +53,7 @@ data ItemStructuralFunction
     | AmmoEffectSF AmmoType
     | FunctionChangeSF
     | MakeAutoSF
+    | ProjectileStabiliserSF
     deriving (Eq, Ord, Show, Read)
 
 type ComposedItem = (Item, ItemStructuralFunction, LinkTest)

src/Dodge/Data/Item/Combine.hs

@@ -72,6 +72,8 @@ data AttachType
     | BULLETSYNTH
     | REMOTESCREEN
     | JOYSTICK
+    | GIMBAL
+    | GYROSCOPE
     | REMOTEDETONATOR
     | SMOKEREDUCER
     | HOMINGMODULE