feat: add ability to skip restarts on link and unlink

Refs dokku/dokku-redis#192

subcommands/unlink

@@ -11,6 +11,7 @@ service-unlink-cmd() {
   #E dokku $PLUGIN_COMMAND_PREFIX:unlink lollipop playground
   #A service, service to run command against
   #A app, app to run command against
+  #F -n|--no-restart "false", whether or not to restart the app on unlink (default: true)
   declare desc="unlink the $PLUGIN_SERVICE service from the app"
   local cmd="$PLUGIN_COMMAND_PREFIX:unlink" argv=("$@")
   [[ ${argv[0]} == "$cmd" ]] && shift 1