Monks, Nihangs, Vampires and Naval Melee ignore Walls

This mod makes the mechanics more consistent. Warrior monks, Nihangs, Vampires and Naval Melee units attack melee but they are excluded by the wall breaker mechanics.

Features:

1. Battering ram works with Warrior monks, Nihangs, Vampires and Naval Melee.

2. Siege Tower works with Warrior monks, Nihangs, Vampires and Naval Melee.

3. Akkad suzerain ability works with Warrior monks, Nihangs, Vampires and Naval Melee.