Microsoft OneDrive integration

[jmchilton]

I've done all the initial dev work for OneDrive integration (including I think a production config file) but I am struggling a bit with the integration testing and we store these templates in the database for users so I don't want to integrate experimental stuff the way I would with... nearly anything else in Galaxy.

The commit is jmchilton@29a3fa2 and it should apply on top of the other OAuth 2 work in #18272. I think the problem is that Microsoft requires app publishers to verify domain names (https://learn.microsoft.com/en-us/entra/identity-platform/publisher-verification-overview). Which would be easy enough to test for a admin with access to a dev server with a CNAME and a static proxy setup but I do most of my work on my laptop in a McDonalds.

The GCC is coming quickly - I'm going to pull this commit out of my dev branch and work on other stuff.