Modifications in the ETS to solve the issue 46

The test will pass validation when the element has an attribute 'indeterminatePosition' with one of the following values:

- unknown
- now

data/schemas/ets-schemas-bsxets.xml

@@ -206,7 +206,7 @@ Source: <a href="http://inspire.ec.europa.eu/id/ats/data/3.0rc3/schemas/gml-mode
 									<parent ref="EIDc04ade3c-0ad2-4fa5-9977-d83022855e3b"/>
 									<expectedResult>NOT_APPLICABLE</expectedResult>
 									<expression>
-let $indeterminatePositionValues := ('unknown', 'now', 'before', 'after')
+let $indeterminatePositionValues := ('unknown', 'now')
 let $featuresWithErrors := $features[*[not(@xlink:href or element() or (text() and string-length(normalize-space(text()))&gt;0) or @xsi:nil eq 'true' or @indeterminatePosition = $indeterminatePositionValues)] or */*/*[not(@xlink:href or element() or (text() and string-length(normalize-space(text()))&gt;0) or @xsi:nil eq 'true' or @indeterminatePosition = $indeterminatePositionValues)]][position() le $limitErrors]
 return
 (if ($featuresWithErrors) then 'FAILED' else 'PASSED',