fixed META-INF directory causing jar files not being recognised on imp/exp startup

.idea/gradle.xml

@@ -10,6 +10,7 @@
               <build path="$PROJECT_DIR$/../energy-ade-2-citygml4j" name="energy-ade-2-citygml4j">
                 <projects>
                   <project path="$PROJECT_DIR$/../energy-ade-2-citygml4j" />
+                  <project path="$PROJECT_DIR$/../energy-ade-2-citygml4j/energy-ade-samples" />
                 </projects>
               </build>
             </builds>
@@ -21,6 +22,7 @@
           <set>
             <option value="$PROJECT_DIR$" />
             <option value="$PROJECT_DIR$/../energy-ade-2-citygml4j" />
+            <option value="$PROJECT_DIR$/../energy-ade-2-citygml4j/energy-ade-samples" />
           </set>
         </option>
       </GradleProjectSettings>