Failing test - count the comments on each type and property. Currently this spots
that we have some bad property definitions. TODO: add Enum.
Added isEnumerationValue() function, plus tests in tests/
Added tests for Enumeration values, depending on the new isEnumerationValue() API call.
Testing for enumerated values that have unexpected number of comments.

Noted some ideas for future tests. At some point we may need SPARQL or similar.
Noting TODOs