Enhance FFDC plugin to handle data types return from plugins
Enhance FFDC plugin to handle data types return from plugins

Changes:
     - Add more validation to check data types
     - Introduce plugin name global list for list,dict data types

Change-Id: Icaba80f2eed8a5ff7aeeeafe99e78ffadc40555a
Signed-off-by: George Keishing <bef0a9ecac45fb57611777c8270153994e13fd2e@in.ibm.com>

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