Power on and off new interface

The changes introduce the following:
   - New state manager file
   - Variables are local and will get moved out eventually
   - New keywords for Power on and off
   - New supporting keywords for state check

Resolves openbmc/openbmc-test-automation#269

Change-Id: I8cd0f975749078f76174c5c4872b2b915b973fa5
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
1 file changed