Fix uri field in digest auth header to include query params

[RyanGrif]

Subsystem
Client

Motivation
The problem is described in issue #1990 . When using digest auth, the uri field does not include the request parameters included in the original request. This breaks digest authentication.

Solution
Changing all places in DigestAuthProvider.addRequestHeaders which currently use url.encodedPath to use url.fullPath so that the uri field and token include the request parameters.

[e5l]

Hey @RyanGrif, Thanks for the request.
LGTM.
Could you add the test to verify the behavior?

[RyanGrif]

Hey @RyanGrif, Thanks for the request.
LGTM.
Could you add the test to verify the behavior?

Hey @e5l, I've added tests for the DispatchAuthProvider as requested. They pass for jvm, js browser and node, but fail for posix - I get the error [generateNonce] is not supported on iOS which suggests that Digest auth just isn't designed to work with iOS. If that's right, is there a way I can skip these tests for posix? Apologies if this is confusing - I'm quite new to Kotlin and not at all familiar with this multiplatform build stuff!

[e5l]

Merged