new mod: nation balance mod

[Turin]

the celestial masters got base astral 2 base in all themes and the master of the dead now costs 100gp and has d1 1random.

The seraph nerf was very minor: higher encumbrance, one less hp, one less prec, less leadership. I wanted to give them a lower mapmove, but that doesn´t seem possible for flying commanders.
I´m not sure what the correct price for them should be.
I feel it would be the job of a spell mod to balance air magic/frozen heart.