FQM-318: Standard prefetch expressions test

[tstrass]

Summary

This adds a test for found-29. It checks whether the server's advertised prefetch queries match the standard queries, and emits warnings when they don't.

The IG's language around this requirement is a bit vague, so please check my interpretation.

The actual requirement:

Servers SHALL use prefetch expressions in the manner described below if those data elements are relevant to their coverage determination or other decision support.

Since the server is allowed to have more or fewer prefetch expressions than the standard set, I conclude that whether or not a mismatched prefetch expression violates the requirement depends on the intent of the expression, which is impossible for Inferno to know, and therefore up to the tester's judgement. I also took the wording of the requirement to mean that Inferno should not enforce specific expression key names (e.g. 'pat' versus 'patient').

Testing Guidance

• Run the Discovery group against the client suite (pick any hook group) with "Run Against the CRD Client Suite" preset. The new test should pass with no warnings.
• Run the Discovery group against the client suite (pick any hook group) with "Run Against the CRD Client Suite's Preset Subset Services". The new test should pass with 16 warnings.

Anticipated Provider-side Test Impact

None