Add PresentationExchange.selectCredentials

[kirahsapong]

Adds

• PresentationExchange.selectCredentials to return an array of selectable vcJwts given a presentation definition
• PresentationExchange.satisfiesPresentationDefinition that returns void and throws if a set of VCs fails to satisfy a given PD.

Inspired by our kt and js implementations ✨

Note: WIP but pls review early and lmk any questions. Still adding a few more test cases.

closes #3

[nitro-neal]

just fyi as parse is getting renamed in 'decode' I think (this is how it is in go):

lots of new decoding logic here for making sure jwt is valid vcjwt
decentralized-identity/web5-js#421

and when we get to the verify part of the vcJwt the plan is to split up verify into lots of parts with verify options - decentralized-identity/web5-js#425

[kirahsapong]

i will add in a follow up PR. tracked here: #28

thanks!

cc: @jiyoontbd

[nitro-neal]

Wow great job, looking good so far! 👏

[jiyoonie9]

looks great! seems like there's a bit more work to be done wrt neal's comment about additional JWT decode checks in the works for web5-js also applying to this PR?

[nitro-neal]

looks great,
As a quick follow up I would try to add the swift package to use the test vectors - https://github.com/TBD54566975/web5-spec/blob/main/test-vectors/presentation_exchange/select_credentials.json

( I can help with that )

and adding a lot more dynamic valid / invalid pd unit tests like we have here: https://github.com/TBD54566975/web5-kt/blob/main/credentials/src/test/resources/pd_filter_array.json

[kirahsapong]

nice, thanks @nitro-neal! yeah i wrote in the description for now

Note: WIP but pls review early and lmk any questions. Still adding a few more test cases.

appreciate the reviews so far everyone! will [at] everyone again when test cases are added lol