Version 0.9.7.4

Mechanics:

-New Building: Workshop (Allows to upgrade buildings)
->New upgradable Building: House1
->New upgradable Building: House2-Units don't attack enemies while walking in the defend state now

Bugfixes:

-The "Defend" state did not work properly, units ran into enemies, now they just stand still and attack if something is in range
-Removed the 3rd attack state
-When a unit or a other player harvested something at the same time, the player got stuck
-The storage UI was not updating the players wheat amount correctly
-The player can not longer harvest two stones at once
-The church was way too cheap
-You could see into the chickenfarm when placing the cam inside it