adding test vector

[nitro-neal]

Here is an example of what the test may look similar to that implements thsi test vector:

    @Test
    fun `web5-test-vectors/presentation-exchange/wa-license.json`() {
     val jsonString = get("https://raw.githubusercontent.com/TBD54566975/sdk-development/392de55c0992e5457d8d881f37299984f17d168c/web5-test-vectors/presentation-exchange/wa-license.json")

      val pd = jsonMapper.readValue(
        readPd(jsonString.vectors[0].presentationDefinition),
        PresentationDefinitionV2::class.java
      )

      val vcJwt = jsonString.vectors[0].credentialJwt

      val presentationResult = PresentationExchange.createPresentationFromCredentials([vcJwt], pd);

     assertEquals(presentationResult.toString(), jsonString.vectors[0].output)
    }

our PresentationExchange function takes in : presentationDefinition and credentialJwt from the test vector, and it should generate the output from the test vector

[andresuribe87]

This is awesome @nitro-neal

A couple of pieces of feedback.

• Could you add a README similar to what's done in #69 ?
• I think it would make sense to add error test cases, what do you think? An example is in https://github.com/TBD54566975/sdk-development/blob/5385c51489383abe6bf1db892b6391671e6b9238/web5-test-vectors/did-web/resolve.json#L56-L65
• Not for this PR, but I just want to stress that I'm strongly against fetching over the internet in a unit test. In this case, I would actually recommend that you iterate within web5-kt, and then once you're confident everything works, then kind of "promote" the vectors into sdk-development.

Let me know if that all makes sense!

[nitro-neal]

Sounds good and makes sense to me! Added README and I will add the errors when I complete what my error object will look like