refactor: Avoid unnecessary iteration when checking linked components of

bay weapons

This leaves a lot of copy-pasted code in place, but untangling that is
proving to be a bit of a headache, so this will suffice for the moment.

megamek/src/megamek/common/actions/WeaponAttackAction.java

@@ -468,7 +468,7 @@ private static ToHitData toHitCalc(Game game, int attackerId, Targetable target,
                 && (munition.contains(AmmoType.Munitions.M_ARTEMIS_V_CAPABLE)));
 
         if (ae.usesWeaponBays()) {
-            for (WeaponMounted bayW : weapon.getBayWeapons()) {
+            for (WeaponMounted bayW : weapon.streamBayWeapons()) {
                 Mounted<?> bayWAmmo = bayW.getLinked();
 
                 if (bayWAmmo == null) {