Added a temporary placeholder json file while we figure out what will go in there.
Merge branch 'feature/SDModules' of github.com:setdirection/ios-shared into feature/SDModules

Conflicts:
	Examples/SDModulesTestHarness/SDModulesTestHarness.xcodeproj/project.pbxproj
	Examples/SDModulesTestHarness/SDModulesTestHarness/SDDefaultModulesLayout.json