Allow unit testing of rules with MedDRA or other dictionaries

Licensing needs to be determined for MedDRA. Some options:
- The dictionary is stored in a shared location that is only accessible by unit testers.
- Authors create mock dictionary data specific to rules
- Authors upload a copy of the dictionary when executing a test

AC
Rules are able to handle test data files that specify Dictionary name and version. The dictionary name and version are passed to the rule engine along with the rule and test data.