uriMappings for installed plugins

plugins/org.yakindu.base.types/plugin.xml

@@ -22,5 +22,16 @@
             uri="http://www.yakindu.org/base/base/2.0.0">
       </package>
    </extension>
+   <extension
+         point="org.eclipse.emf.ecore.uri_mapping">
+      <mapping
+            source="platform:/resource/org.yakindu.base.types/model/base.ecore"
+            target="model/base.ecore">
+      </mapping>
+      <mapping
+            source="platform:/resource/org.yakindu.base.types/model/types.ecore"
+            target="model/types.ecore">
+      </mapping>
+   </extension>
 
 </plugin>