This adds an option to match domains by regex including two special named matching groups. User matches the username of the user, and Group matches the groups a user is a member of. These are both case-insensitive and you can see examples in the docs.
This fixes misleading errors for ACL rules with an empty list of domains. This also enables admins to have a default policy with zero ACL rules as long as the default policy is not deny or bypass. It also adds a rule number to all ACL rule related log messages which is the position in the YAML list plus 1. Lastly it adds comprehensive per rule HIT/MISS logging when Authelia trace logging is enabled. This trace logging includes the rule number.
* [MISC] Validate all sections of ACLs on startup
This change ensure that all sections of the `access_control` key are validated on startup.
* Change error format to clearly identify values
