We want to move the detector types out of the Scanning team purview. So I split off detector types into its own proto file (so that file detector_type.proto can be owned by the Integrations team), regenerated the pb files with "make protos", and made the detector files use the new generated detector_type.pb.go. Included the new detector_type.proto file in CODEOWNERS and made CODEOWNERS categories that contain larger teams be towards the top so that more fine grained ownership is filtered properly.
* added pattern test cases for f alphabet detectors
* added pattern test cases for g alphabet detectors
* fixed test cases
* added pattern test cases for h alphabet detectors
* updated with main