Add ability to tailor report messages from SPARQL checks

It's hard to make the name of a SPARQL check clear enough to communicate the nature of an error and we shouldn't expect all editors to be able understand SPARQL. For this reason, it would be good to have a way to specify some error text to return when the SPARQL. This could work via a simple TSV table of SPARQL queries and error messages. Test fail in Make could echo the warning & write it to the report log.

Start by locating the Make-based SPARQL checks and the report log mentioned in the issue. Determine how a TSV mapping of SPARQL queries to error messages would be read, how failed checks currently report warnings, and what output and log behavior would count as complete.

Written by the indexing model from the issue text.