Add another field to filter users further in Email List Generator

[xamberl]

For users with a specific submit node or users involved in a project, add another field to select users that have "Auth via NetID" and "Auth via Username" checked. This may change later to "Status = Active" if we add that attribute. (#11)

[CannonLock]

@fallow64 We will need to add a first class active field before you hit the UI pieces for this.