Start refactoring of the trigger system:

- Move each trigger handler into its own file
- Add dictionary helper classes for easier reading and writing of dict-based data
- Extract the web hook payload -> internal representation building for each trigger system
- Add tests for this transformation
- Remove support for Github archived-based building

requirements-nover.txt

@@ -54,3 +54,4 @@ pyjwt
 toposort
 rfc3987
 pyjwkest
+jsonpath-rw