Limit reviews to unreviewed values.

[zanerock]

Overview

Given something like the following:

{  "actions": [
  { "prompt": "What's your favorite number?", "parameter": "FAV_NUMBER", "paramType": "int" },
  { "review": "all" },
  { "maps": [ { "source": "FAV_NUMBER >= 100", "parameter": "BIG_NUMBER", "parameterType": "bool" }},
  { "review": "all" }
]}

Our goal (and documentation) would be that only "BIG_NUMBER" is reviewed in the second review since "FAV_NUMBER" was reviewed in the first and reviews should only include "not already reviewed" values.

Deliverables

• implement the "not already reviewed" logic of review actions