Add Mobile Test Suite

[Garrett Michael Flynn]

Both mobile build and start have not been approached because of less usage and the lack of a good E2E testing strategy.

For comprehensive mobile testing, we'll have to cover the following:

• Ensure missing dependencies are added correctly (and do not persist after each test)
• Do not open in XCode / Android Studio, simply output the required project files
• Confirm assets have been placed in the platform-specific output directory
• Remove the platform directory after tests