Notify all champions of a mentor request

[conoramurphy-zz]

When someone requests to join as a volunteer, the current request goes to the owner and the dojo email. If it could go to the dojo email and every champion that would cover more and make sure it is not missed..

[nuala-louise]

Here is a comprehensive description of the above: https://docs.google.com/document/d/18xpxpraNjK-uL6W5UZAyzYZIMpsiTWfPRzd4MWLFdKg/edit

[conoramurphy-zz]

@nuala-louise That document you provided does more firmly talks about the overall problem. However the notification issue can be peeled off and dealt with separately which is all this ticket covers. But what you provided is good background information. Thanks