Multiplayer support and features

Fixed the +10k button in the population manager adding 100k instead
Added increasing/decreasing urbanization level in the state manager (upgrades/downgrades state category, changing building slots)
Text in the state manager, telling you you can't edit resistance when selecting core states

Railway spawning

Cleaned up the new menu a little, centered some buttons, clarified a bit of text.

New menu for country rules, new button moved into it, fixed one of the population buttons adding the wrong amount, simplified main shortcut, fixed armor being incorrect on a ship design, updated version number so people don't whine.

Updated the supported version because stupid people think the different version marker does anything.

Compliance/resistance editing and transferring resource rights is now in the state menu.
The PMT/MMT (Manpower and Population editing) tools should have less glitchy displaying of population/manpower numbers (variables would overflow or did not fit the textbox).

Added personal union and supervised government puppeting options, they're not in the gallery due to it being a bit full.
I looked into making collab governments possible, but it glitches out.

Cleaned up the (English mostly) localization

Ship spawning now functional. Fuel silo total now displays in the building spawner.