PURPOSE of /CoreOS/fipscheck/Sanity/library

Test fipscheck library API:

 * FIPSCHECK_verify()
 * FIPSCHECK_verify_ex()
 * FIPSCHECK_verify_files()
 * FIPSCHECK_verify_files_ex()
 * FIPSCHECK_kernel_fips_mode()
 * FIPSCHECK_fips_module_installed()