[TIMOB-27132] iOS 13: Add MacOS as a target for deployment

iOS 13 introduces the option to deploy iOS apps to MacOS. We should investigate the effort needed to allow Titanium apps to be deployed to MacOS. Furthermore, this investigation should also contain permission system and possible other changes needed to make all (or as much as possible) of our existing iOS functionality work on MacOS. *Expected result* After implementation users should be able to deploy apps to MacOS and run them. If certain functionalities are hard to port we can omit them in initial release so we can at least say we've got support. If usage and interest is high enough we can build out other features from there.