Deploy supervisor config for new RQ worker

modoboa_installer/scripts/files/modoboa/supervisor-rq-base.tpl

@@ -0,0 +1,9 @@
+[program:modoboa-base-worker]
+autostart=true
+autorestart=true
+command=%{venv_path}/bin/python %{home_dir}/instance/manage.py rqworker modoboa
+directory=%{home_dir}
+user=%{user}
+redirect_stderr=true
+numprocs=1
+stopsignal=TERM