Ensemble: Add Export/Import method with json files.

src/View/ui/Ensembles.ui

@@ -33,6 +33,9 @@
    <addaction name="action_add"/>
    <addaction name="action_del"/>
    <addaction name="action_edit"/>
+   <addaction name="separator"/>
+   <addaction name="action_export"/>
+   <addaction name="action_import"/>
   </widget>
   <action name="action_add">
    <property name="icon">
@@ -79,6 +82,30 @@
     <enum>QAction::NoRole</enum>
    </property>
   </action>
+  <action name="action_export">
+   <property name="icon">
+    <iconset>
+     <normaloff>ressources/export.png</normaloff>ressources/export.png</iconset>
+   </property>
+   <property name="text">
+    <string>Export</string>
+   </property>
+   <property name="toolTip">
+    <string>Export all ensemble configuration into json file</string>
+   </property>
+  </action>
+  <action name="action_import">
+   <property name="icon">
+    <iconset>
+     <normaloff>ressources/import.png</normaloff>ressources/import.png</iconset>
+   </property>
+   <property name="text">
+    <string>Import</string>
+   </property>
+   <property name="toolTip">
+    <string>Import ensemble configuration from json file</string>
+   </property>
+  </action>
  </widget>
  <resources/>
  <connections/>