Restrict ACCURACY attribute to 0-100 values range #89
Description
Original item is #62. Because there we have multiple tests, some easy an meaningful to enforce by schema, some more complex we derived from original topic a new one to extend standard schema validation by an optional validation using SCHEMATRON (#87 ) where we have more freedom to add more tests in terms of quality assesment rather than structural issues.
Nevertheless, there is one validation we could enforce on main schema - ACCURACY attribute should be in 0-100 range. We have defined such limitations (0 to 1) for WCType and PCType (used for word and page confidence) and we should treat ACCURACY similar (limit, even the range is different 0 - 100, not 0 - 1)