ftests: Add a test for setting permissions

ftests: Add a test for setting permissions

Add a test to exercise the python bindings to set permissions on
a cgroup.

-----------------------------------------------------------------
Test Results:
        Run Date:                          Nov 17 22:00:51
        Passed:                                  1 test(s)
        Skipped:                                 0 test(s)
        Failed:                                  0 test(s)
-----------------------------------------------------------------
Timing Results:
        Test                               Time (sec)
        ---------------------------------------------
        setup                                    0.00
        057-sudo-set_permissions_v1.py           0.05
        teardown                                 0.00
        ---------------------------------------------
        Total Run Time                           0.05

Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>
Reviewed-by: Kamalesh Babulal <kamalesh.babulal@oracle.com>