Add rule to detect when a user should use enumValues()

[silbinarywolf]

In getCMSFields() a user might not realize they can retrieve the enumValues() via dbObject, so throw an error if the fieldname is equal to a DBField that uses enum wherein it's just a constant array of enum values.

[nglasl]

@silbinarywolf can you please confirm if this is still an issue? I noticed a single commit reference above, but it seems unrelated? I assume you were using the numbers as iterations when working on something else.

[silbinarywolf]

@nglasl Yep, unrelated commit. Still an improvement that can be made.

[nglasl]

Sweet, thanks for the clarification.