Implement production vertical slice foundation

game/world/submarine/submarine_motion_adapter.gd

@@ -0,0 +1,14 @@
+class_name SubmarineMotionAdapter
+extends "res://game/application/interfaces/vehicle_motion_port.gd"
+
+const SubmarineActor = preload("res://game/world/submarine/submarine_actor.gd")
+
+var _actor: SubmarineActor
+
+
+func _init(actor: SubmarineActor) -> void:
+	_actor = actor
+
+
+func apply_command(command: VehicleCommand) -> void:
+	_actor.apply_vehicle_command(command)