Install usb cloning tool on mesh client

src/freedombone-image-customise

 PATCHWORK_COMMIT='60111a9e3385d65be0d17aa0d15fd20e5fb311ce'
 
 install_patchwork() {
+    if [[ $VARIANT != "meshclient" ]]; then
+        return
+    fi
+
     get_npm_arch
 
     git clone $PATCHWORK_REPO $rootdir/etc/patchwork
     # android adb to allow phones to be connected and for example transfer photos/documents
     chroot "$rootdir" apt-get -yq install android-tools-adb
 
+    # USB cloning tool
+    chroot "$rootdir" apt-get -yq install gnome-multi-writer
+
     # Produce a text file on the desktop listing users on the mesh
     cat <<EOF > $rootdir/usr/bin/list-tox-users
 #!/bin/bash