Run app on iOS platform

[hundredball]

The purpose of this pull request is to make the app runnable on iOS.

Main changes

• Remove geofencing modules that won't be used in the first release
• Remove notification-related packages and codes
• Update iOS version and config files
• Update docs/Run_On_iOS.docx to explain how to run on iOS in the current setup

There are lots of files under the windows folder. They are used to generate .exe on Windows which are useless for us so you don't need to review them.

I have successfully run the app on the iOS simulator and my iPhone. Please let me know if you encounter any issues running it.