Reintroducing `emque new` command for generating emque-consuming services

```
emque <options> (start|stop|new|console|help) <name (new only)>
    -P, --pidfile PATH               Store pid in PATH
    -S, --socket PATH                PATH to the service's unix socket
    -b, --bind IP:PORT               IP & port for the http status service to listen on.
    -d, --daemon                     Daemonize the service
    -e, --error-limit N              Set the max errors before service suicide
    -s, --status                     Run the http status service
    -x, --error-expiration SECONDS   Expire errors after SECONDS
        --app-name NAME              Run the application as NAME
        --env (ex. production)       Set the application environment, overrides EMQUE_ENV
```