XD-763 Remove Trigger Module Code
-- Remove all the trigger module code and the code that supports/tests it
-- Trigger source now sends a single message with payload
-- fixed-delay-trigger will send a message with payload every 'fixed-delay' seconds declared. payload is optional
***** fixed-delay-trigger --fixedDelay='30' >:foo2
-- Job relies on trigger to kick off single launch. payload is optional
***** trigger --payload='{"parm2":"fixed-delay2"}' >:foo

XD-763 Unit tests now pass.

Fixed-Delay trigger settings now a part of fixed-delay-trigger.