Updated asteroids and mines. Updated ship class names. Added initial ship muzzle logic.

AlientAttack.MonoGame/Things/Enemies/Ships/Ship.cs

@@ -0,0 +1,9 @@
+using AlienAttack.MonoGame.Things.Muzzles;
+using Microsoft.Xna.Framework;
+
+namespace AlienAttack.MonoGame.Things.Enemies.Ships;
+
+public abstract class Ship(int x, int y) : MoveableSprite(x, y)
+{
+    public abstract Vector2 GetMuzzleLocal(MuzzleId muzzle);
+}