myth-auth - user group entries

Hi, here I put this package 

https://github.com/lonnieezell/myth-auth


manually threw it into ThirdParty and did all the settings that were on the git repository, and there was such a problem that everything is registered, but there is no user group entry, In the setup, I didn’t know how to set the default registration group for users.

I created groups in the database in the auth_groups table.

So in the config for this package should be configured to set the default group.

Myth:Auth does not currently support a "Default group", but it is a good idea! I recommend either opening an Issue on the myth-auth GitHub repo, or even better send Lonnie over a PR