Add range-check for numbers

[JasonAllenCorns]

in addition to equals, above, below, please add a validation method for "between", such that

          "criteria": [
            {
              "has": {
                "trait": "hasNumberValue",
                "comparison": "between",
                "start": 1,
                "end": 10
              }
            }
          ]
        },

This would cut improve on the compound criteria that includes an "above" and a "below" with an "all" match.

[CM-SiteUI]

The percentScale criteria is similar to this, but the range in limited to [0, 100]. The has method can be extended to include a "between", with a slightly different signature:

"criteria": [
            {
              "has": {
                "trait": "hasNumberValue",
                "comparison": "between",
                "value": {"start": 1, "end": 10}
              }
            }
          ]

or

"criteria": [
            {
              "has": {
                "trait": "hasNumberValue",
                "comparison": "between",
                "value": [min, max]
              }
            }
          ]