add version check to Get_CRTM_Binary_Files.sh and add version check of fix/ in test/CMakeLists.txt

[BenjaminTJohnson]

Get_CRTM_Binary_Files.sh doesn't check for the version of the existing fix/ directory.

Generally this isn't a problem, but if someone has been using the same CRTM directory for a long time, their fix/ folder might get out of date.

Also. test/CMakeLists.txt checks for the existence of a fix/ directory, but doesn't have a way to check for version to ensure that it's up to date. I think rather than forcing a new download, it should simply inform the user that the current fix/ directory is potentially outdated.