Feat: Implement display of CityDoctorModel metadata

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

@@ -164,8 +164,16 @@ public class ZipEntryPicker {
         } else {
             erroneousValue.setText(Localization.getText("ZipEntryPicker.no"));
             if (entry.getModel() == null) {
-
+                validatedValue.setText(unknownValueText);
+                objectCountValue.setText(unknownValueText);
+                return;
+            }
+            if (entry.getModel().isValidated()) {
+                validatedValue.setText(Localization.getText("ZipEntryPicker.yes"));
+            } else {
+                validatedValue.setText(Localization.getText("ZipEntryPicker.no"));
             }
+            objectCountValue.setText(String.valueOf(entry.getModel().getNumberOfFeatures()));
         }
     }