feat: add support for verifying multi-vp presentations

[TimoGlastra]

Adds support for verifying multi-vp presentations based on the recent addition to PEX. it does not add methods yet to create responses including multiple VPs, as this would require more changes to PEX as well. Currently how we do it in Credo is we determine the presentations we need to create based on the credentials (each sd-jwt one, each credentialSubject.id in jwt-vp one, etc..). And then we can call the evaluatePresentations to generate the submission. We should probably contribute that to PEX?

But this PR at least allows the verifying and handling of multi-vp responses. Currently based on unstable version of PEX, need a new release as well.

[TimoGlastra]

@sksadjad / @sanderPostma if you also have time to look at this one, that'll be helpful. It will unblock quite a few things for us :)

[sanderPostma]

No comments on the code itself, but going to build & release a new pex library first on which this branch depends on.
Also the tests are failing, please see if this is related to your changes, otherwise I will also create a branch feat/multi-presentation in our repo it base the PR against.

[TimoGlastra]

Also the tests are failing, please see if this is related to your changes

Yes I coded this in the plane and some tests were failing due to missing internet, but I see now that there's some issues in those tests still. I will fix them!

[TimoGlastra]

Fixed the test @sanderPostma, passes locally now

[TimoGlastra]

Ah and also in the CI now 🎉

[TimoGlastra]

Updated with latest version of PEX. It now needs Sphereon-Opensource/PEX#169 and Sphereon-Opensource/PEX#168 to be merged/release first

[sanderPostma]

@TimoGlastra
I merged it, but apparently we had an increase in test coverage because tsc is now complaining about a lot of things when compiling from AuthenticationResponse.response.spec.ts
(working on it in develop...fix/post-merge )