Created new gen_cmd.py module.
Created new gen_cmd.py module.

Change-Id: I9fb5adc2287f192233ae4f42979082f18161a6b0
Signed-off-by: Michael Walsh <10404802c7de463f402c4a18638106ca1b12ef61@us.ibm.com>

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