updater script and watcher service for dawon and viterbi

navy/etc/systemd/system/cosmos-watcher.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=Watch cosmos.config.json and trigger routes.sh
+After=network.target
+
+[Service]
+User=ubuntu
+ExecStart=/bin/bash -c 'while inotifywait -q -e modify /var/lib/cosmos/cosmos.config.json; do $HOME/routes.sh; done'
+Restart=always
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target