Can't create admin scope for permissions for wildcard hosts

[GUI]

We recently added support for API backends to be defined for wildcard hostnames: #240 However, we can't actually create admin scopes and groups for these wildcard backends to dole out permissions to agencies. Currently only super-admins can access these wildcard API backends.

The issue is that if you try to create an API Scope for a wildcard hostname like .api.example.com, the API Scope form will reject the request for containing what it thinks is an invalid hostname. I think the simple fix is that we just need to flip the host validation for the API Scope area to use the hostname format that also accepts our wildcards: https://github.com/NREL/api-umbrella-web/blob/89ca4224238993fd1d2fa639795f4cd819424e48/lib/common_validations.rb Then I think the rest of the permissions may work.

[GUI]

Fixed by NREL/api-umbrella-web@2b2b76b and NREL/api-umbrella-web@3afb7bb