CAutoTest::parseTriggerFromXML

Description: Parses the trigger and its type from the XML.
Parameter:

• xmlO: Prased XML structure pointing to the trigger.
• testDescription: Description of the test.
• testTrigger: Trigger parameter. (Result is written to this pointer)
• testTriggerType: Trigger type. (Result is written to this pointer)
• testTriggerAttributes: Trigger attribute(s). Can hold additional parameters. (Result is written to this pointer)