Some balance changes in growth and taxes

-Added growth bonus +50% than default bonus on each dificulty
-The turn penalty for global recruitment was removed for human player.
-The difficulty % was standardized for incomes buf and cheaper cost
-Eificulty levels steps was standardized too: +5%,+10%,+15%,+20% from legendary to easy
-The penalty for additional army was changed in consequence: 1% easy, 3% Legendary, 2% the rest
-The bonus for raid and trade was change in consequence too

-The turn penalty for global recruitment was removed for human player.
-The difficulty % was standardized for incomes buf and cheaper cost
-Eificulty levels steps was standardized too: +5%,+10%,+15%,+20% from legendary to easy
-The penalty for additional army was changed in consequence: 1% easy, 3% Legendary, 2% the rest
-The bonus for raid and trade was change in consequence too

Updated mod and description values

added some buffs to raid and trade to have impact in your economy.