Added the GuiLabel and GuiButton classes
Moved the LuaGetField module to a seperate lua directory
Added a LuaState class for wrapping the lua_State structure
Merged the functionality of luaGetField into the Lua state wrapper
Load standard libraries on lua state creation
Added a doFile method to the lua state wrapper
Gnaar now uses the LuaState wrapper for Lua operations
Moved the macro stuff to the end of the file
Changed the getRaw method to a pointer dereference operator
Changed the Exception toString format for better readability
Added a Level class
Removed the Game class
Added a Level member to the Gnaar class
Added a public getter method for the screen surface
Tick and draw the level