Adds large ammo boxes, compacted ammo magazines for turrets, & Mk2 Gun Turret with logistics slots.
The Gun Turret MK2 can be stacked on top of itself. It also has a selection box of half of the width of the visible sprite.
I did just fix the collision box issue. The selection area actually is a bit wonky. So there are two selection areas, one half for the container, one half for the turret stats. I recently updated the graphics to make this a bit more visible as well.
