clear global errors on rerun

add more information in global error table

CityDoctorParent/CityDoctorValidation/src/main/java/de/hft/stuttgart/citydoctor2/check/Checker.java

@@ -620,6 +620,9 @@ public class Checker {
     private void checkCityModel(CityDoctorModel model, ProgressListener l) {
         Stream<CityObject> features = model.createFeatureStream();
         float featureSum = model.getNumberOfFeatures();
+        // clear global errors
+        model.getGlobalErrors().clear();
+        
         // stupid lamda with final variable restrictions
         int[] currentFeature = new int[1];
         features.forEach(co -> {

CityDoctorParent/Extensions/CityDoctorGUI/src/main/java/de/hft/stuttgart/citydoctor2/gui/CityDoctorController.java

@@ -1030,7 +1030,7 @@ public class CityDoctorController {
                 updateTree(mainWindow.getPolygonsView().getRoot());
                 for (CheckError e : model.getGlobalErrors()) {
                     if (e instanceof SchematronError se) {
-                        mainWindow.getGlobalErrorsView().getItems().add(se.getErrorIdString());
+                        mainWindow.getGlobalErrorsView().getItems().add(se.getErrorIdString() + " - " + se.getNameOfAttribute());
                     }
                 }
                 renderer.refresh();
@@ -1083,7 +1083,7 @@ public class CityDoctorController {
                 updateTree(mainWindow.getPolygonsView().getRoot());
                 for (CheckError e : model.getGlobalErrors()) {
                     if (e instanceof SchematronError se) {
-                        mainWindow.getGlobalErrorsView().getItems().add(se.getErrorIdString());
+                        mainWindow.getGlobalErrorsView().getItems().add(se.getErrorIdString() + " - " + se.getNameOfAttribute());
                     }
                 }
                 renderer.refresh();