Add match() and _match() class methods to rule classes
Add match() and _match() class methods to rule classes: - _match() returns a regex match object for the given raw_rule - match() converts the _match() result to True or False
The primary usage is to get an answer to the question "is this raw_rule your job?". (For a moment, I thought about naming the function *Rule.myjob() instead of *Rule.match() ;-)
My next patch will change aa.py to use *Rule.match() instead of directly using RE_*, which will make the import list much shorter and hide another implementation detail inside the rule classes.
Also change _parse() to use _match() instead of the regex, and add some tests for match() and _match().