Removed duplicate stone quarry icon from techtree

Balance fix: removed worker for stone quaries

Fixed stone quary not appearing in buildable districts

Rebalanced Culture cost for Independable Districts

moved Fortified Village (aka Castle) to Military Architecture, which now start near the begining of the medival era as it used to in vanilla

FIxed issue where Anti Cavalry Trait was not effective versus Light Cavalry unit types

Fixed commercial district beeng buidable in the Ocean. Added Fortified Villa District

Stone Quary now produces Stone Resource. Stone Walls now require Stone to be build

Added Stone Quary District

Fixed compatibility issue with