Test Redfish BMC dump
Test Redfish BMC dump

Changes:
    - Added a suite to test redfish BMC dump.
    - Added tests to verify BMC dump create and delete operation
    - Added tests to verify BMC dump persistency

Change-Id: If53f3c8c526444fb5cf27be7c053173efc4a2ff1
Signed-off-by: Rahul Maheshwari <a806e6fd77e56dd64ff6084a06bbf3a5a70392ef@in.ibm.com>

openbmc/openbmc-test-automation,openbmc/openbmc-test-automation