steam client integration, can still compile without (obviously)

build/options.lua

build/te4core.lua

game/engines/default/engine/Game.lua

game/engines/default/engine/PlayerProfile.lua

game/modules/tome/class/GameState.lua

game/modules/tome/class/interface/WorldAchievements.lua

premake4.lua

src/main.c

src/main.h

src/types.h