Add example script to switch primary and secondary display applications

also don't run detect-second-display multiple times during a session.

roles/yavdr-desktop/tasks/main.yml

@@ -103,6 +103,14 @@
     owner: '{{ vdr.user }}'
     group: '{{ vdr.group }}'
 
+- name: create switch-displays script
+  template:
+    src: templates/bin/switch-displays.j2
+    dest: '{{ vdr.home }}/bin/switch-displays'
+    mode: 0755
+    owner: '{{ vdr.user }}'
+    group: '{{ vdr.group }}'
+
 - name: create openbox-second.service for the session
   template:
     src: templates/systemd/user/openbox-second.service.j2