Added reportWWHOBDDTCWithPermanentStatus + improvement to reportWWHOBDDTCByMaskRecord

[pylessard]

• Report missing fields in reportWWHOBDDTCWithPermanentStatus
• Added reportWWHOBDDTCWithPermanentStatus
• Added a check for FunctionalGroupIdentifier match in request/response (reportWWHOBDDTCWithPermanentStatus & reportWWHOBDDTCByMaskRecord)
• Added DtcClass class
• fixed type hint in client dtc function that was missing the possibility to pass Severity/Status as objects
• Moved the dtc class bit logic into the service layer
• Improved unit testing

[pylessard]

@jacobs-rvw : Want to check this?

[jacobs-rvw]

This looks ok to me. Thanks. I didn't want to mess with the Response Data originally since it wasn't needed for our use case but I'm glad you added it.