Mass Driver Ammo doesn't use up weight

[UB-JM]

Environment

version 0.45.1
Windows 10
Java 8

Description

Mass Driver Ammunition on Warships doesn't cost any tonnage in MML.
It costs 1 ton to add however many shots , then when they are allocated completely to the ship, that ton vanishes again.

Files

Not sure what files could be handy here.

[neoancient]

Same issue as #194. The calculated weight in the status bar is that of the jumpship that is created when first switching to advanced aero, which should be replaced when switching to warship. The new ammo weight is added because unallocated ammo is calculated separately.