added tests

citygml-owl/examples/README.md

@@ -0,0 +1,10 @@
+# Test files
+lod3-sample*.files are taken from lod3_building_models.gml
+
+CityGML 2.0 property `bldg:measuredHeight` is obsolete in 3.0 and replaced with `con:height`. 
+
+In `lod3-sample-fail.*` used `bldg:measuredHeight` and prefixes of CityGML 2.0 - validator should return error
+
+In `lod3-sample-ok.*` used `con:height` and prefixes of CityGML 3.0. There should not be errors of validation.
+
+The conversion from gml to ttl is done with xSPARQL script.