Fix silkworm launcher falsely added to scud groups

Added AntiShipMissile unit class and updated the hy_launcher unit as well as the silkworm layout to differentiate clearly between missile (scud, v1) and antiship (silkworm)

fixes #2159

game/data/units.py

@@ -26,6 +26,7 @@ class UnitClass(Enum):
     LOGISTICS = "Logistics"
     MANPAD = "Manpad"
     MISSILE = "Missile"
+    ANTISHIP_MISSILE = "AntiShipMissile"
     OPTICAL_TRACKER = "OpticalTracker"
     PLANE = "Plane"
     POWER = "Power"

resources/layouts/defenses/Silkworm.yaml

@@ -12,7 +12,7 @@ groups:
       unit_count:
         - 5
       unit_classes:
-        - Missile
+        - AntiShipMissile
     - name: SilkwormGenerator 2
       optional: true
       unit_count:

resources/units/ground_units/hy_launcher.yaml

@@ -1,4 +1,4 @@
-class: Missile
+class: AntiShipMissile
 price: 0
 variants:
   AShM SS-N-2 Silkworm: null