Add "authenticated users" to Requestor Group

[mi-j]

At the Moment the EMIE SelfService Portal provides the possibility for an application owner to register and then open a request for the SiteList.
To avoid the step of Registration / Activation of each application owner it would be great to add the authenticated users Group from Active Directory to the Requestor Group of the Portal, so every user that visits the Portal can directly open a request without registering and waiting for activation.
The current implementation is very nice when you can (or want) to check if the User is an Application Owner and is eligible to raise a request. But if there is no possibility or need to check this it would be much easier and faster to enable the users to directly raise a request.