NEW: create a Da\User\AuthClient\Microsoft365 auth client

[edegaudenzi]

What steps will reproduce the problem?

Trying to get end-users to login with their Microsoft365 account

What is the expected result?

Login with "Microsoft 365" alongside Facebook, Github, Google and others

What do you get instead?

It does not exist and 'live' is deprecated/not working for companies.

As mentioned here a while ago, I'm now ready to push a PR implementing the Microsoft 365 auth client. Something like:

[edegaudenzi]

Done, hope to have been useful to someone else!

Live long and prosper,

:vulcan_salute: