Add help to mesh client

src/freedombone-image-customise

     # browser
     chroot "$rootdir" apt-get -y install $BROWSER
 
+    # help
+    mkdir -p $rootdir/home/${MY_USERNAME}/help/images
+    cp $rootdir/root/${PROJECT_NAME}/website/*.css $rootdir/home/${MY_USERNAME}/help
+    cp -r $rootdir/root/${PROJECT_NAME}/website/EN/* $rootdir/home/${MY_USERNAME}/help
+    cp $rootdir/root/${PROJECT_NAME}/img/mesh* $rootdir/home/${MY_USERNAME}/help/images
+    chroot "$rootdir" chown -R ${MY_USERNAME}:${MY_USERNAME} /home/${MY_USERNAME}/help
+
     # Tox user interface
     enable_tox_repo
     mesh_tox_qtox