Plugin Error response type check
Plugin Error response type check

Tested:
       - Timedout and expect return
       - wrong data type return
       - Correct return data type

Change-Id: If55150221037550e34d806eb2533f1a012c1ebe4
Signed-off-by: George Keishing <bef0a9ecac45fb57611777c8270153994e13fd2e@in.ibm.com>

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