Support for Digest Authentication

[mgamache]

I would like to use Flurl to access my api that supports only Digest authentication. It doesn't look like Flurl supports that (unless I am mistaken).

[tmenier]

It doesn't. I'm not sure if it's a popular enough standard to add first-class support to the library, but I'll give it some thought.

In the mean time, it would be fairly easy to add your own extension methods to support this. If you need help with that, ask on Stack Overflow and I'll answer - I like to keep "how do I..." questions there for better visibility; this one could definitely be helpful to others.

[tmenier]

I'm actively gathering feedback to help prioritize issues for 3.0. If this one is important to you, please vote for it here!

[luoxinliu]

I also need Digest Authentication

[pynej]

Digest is required for MongoDb/Atlas.

[yAnn1ck-B]

I would love to see this as well our platform uses Flurl for all 3rd party requests except 1 (which needs digest auth :))