Added a Mk. 3 version of the Pill sub, which has several minor changes over the Mk. 2. Hulls were resized slightly, ballast level was corrected, electric discharge coils were wired to their own superconductor, hanging wires were removed, positions and ranges of coilguns were adjusted slightly, some cabinets were adjusted, battery bank wiring was adjusted, several other minor changes were made, and finally both Mk.2 and Mk. 3 have locked containers onboard now