Removes Reloads trait.
This enables adding multiple AmmoPools via @ differentiators and
Name which adds the possibility to assign each armament to a specific
ammo pool.
Furthermore, this moves all Reloads functionality onto AmmoPool.
Now a combination of all three is possible on a single actor: no limited
ammo, limited ammo that can reload on its own, and limited ammo which
needs to be reloaded at a rearm actor.
Additionally moves RearmSound from Minelayer to AmmoPool.
There was an issue where HackyAI would try to build buildings
at old base location and would fail, unless it was placed at the
same place where the old MCV was.
