xcode project parser fixes for cases with empty scheme folders
xcode project parser fixes for cases with empty scheme folders

accatyyc/Buildasaur,Higgcz/Buildasaur,accatyyc/Buildasaur,czechboy0/Buildasaur,Crowdmix/Buildasaur,buildasaurs/Buildasaur,czechboy0/Buildasaur,synchromation/Buildasaur,alimoeeny/Buildasaur,garohussenjian/Buildasaur,alimoeeny/Buildasaur,Crowdmix/Buildasaur,buildasaurs/Buildasaur,synchromation/Buildasaur,Crowdmix/Buildasaur,garohussenjian/Buildasaur,Higgcz/Buildasaur