Updated test flight binding to 3.0

   * Updated test flight binding to 3.0.0 in makefile
   * Updated Readme.md with new version information
   * Updated LinkTargets to include Arm64
   * Remove SetDeviceIdentifier from binding as this has been removed
from the TestFlight SDK
Merge pull request #199 from davehumphreysxam/testflight3.0

[TestFlight] Updated test flight binding to 3.0