Add support for listeners of type Redirect and Fixed Response types on ALB

[yrobla]

They need to have an special treatment with additional fields, as they are not tied to a target group.

[dfellis]

Would it be better or worse if we split Listener into TargetGroupListener, RedirectListener, FixedResponseListener, etc? You can't hide un-used columns and the check constraints can get pretty complicated if there are a whole lot of columns that preclude other columns from being defined, but it could make querying more difficult for all of the listeners on your load balancer if they're in separate tables.