textureldr v1.1a

added savefile support. will probably add more functionality to savefiles, but that shouldn't be very hard now that i've gotten used to tinyxml / fetched the tinyxml functions from libcocos2d. will also have to add safer bounds checking for list selectors, since .dat files can be modified and this could end up with crashes (which isnt fun)

savefiles are saved in (geometrydash folder) + /packs/config.dat and + /packs/backup.dat, in xml.