Added internal documentation.
Added internal documentation.

drewcrawford/XcodeServerSDK,cojoj/XcodeServerSDK,colemancda/XcodeServerSDK,drewcrawford/XcodeServerSDK,cojoj/XcodeServerSDK,colemancda/XcodeServerSDK,czechboy0/XcodeServerSDK,drewcrawford/XcodeServerSDK,colemancda/XcodeServerSDK,czechboy0/XcodeServerSDK