Calculate player value on the fly as a base value plus a fraction of the price the player paid for upgrades.

This unifies the fund system for both teams, credits and prices now compare fully (1 evo = 100 credits).
Human value remains unchanged, alien value is roughly the same, too (average value decrease of 10%).
Only give basic income if mine rate is above its minimum.
Put human sprint modifier into class config files and decrease medium/battlesuit mod 1.2 → 1.15.