* NET-655
* Updated HostPull structure to include EgressRoutes and FirewallUpdate models.
* added ServerVersion structure to hostpull model
* added ServerVersion structure to hostpull model
* removed ServerVersion structure
* removed ServerVersion structure
* added egressroute and fwupdate to hostpull handler
* add host update fallback handler
* set broker type on server cfg
* use actual host password to create emqx user
---------
Co-authored-by: Christopher Blaha <crispspiceguitar@gmail.com>
Co-authored-by: Abhishek Kondur <abhi281342@gmail.com>