General updates to infra and structure; add another test.

The change encompasses these items:
  * Moved the script to the root to provide better flexibility and to remove needing to go another level deeper.
  * Removed the number prefixes on the tests to help avoid annoying collision maintenance updates; plus, they don't really add any value.
  * Updated the test script to provide a more friendly output, including the running against a 'fixed' folder for regression checks for later drops of Xcode.