Revisit the configurable statuses in this app

[gsnider2195]

The plugin configurations need to be revisited to behave consistently with other apps and nautobot core behavior. Recommend removing the default_status configuration and, at the very least renaming allowed_status to allowed_statuses since it's a list but preferably implement this as an enabled boolean on the related models. The name of this configuration is ambiguous and it only applies to the capirca firewall so it should be named appropriately.