ftests: Add a simple cgconfigparser test

ftests: Add a simple cgconfigparser test

Add a simple cgconfigparser test that operates on a
single configuration file.

-----------------------------------------------------------------
Test Results:
        Run Date:                          Mar 09 19:19:17
        Passed:                                  1 test(s)
        Skipped:                                 0 test(s)
        Failed:                                  0 test(s)
-----------------------------------------------------------------
Timing Results:
        Test                                    Time (sec)
        ---------------------------------------------------------
        setup                                        17.78
        017-cgconfig-load_file.py                     0.70
        teardown                                      0.00
        ---------------------------------------------------------
        Total Run Time                               18.48

Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>