[Openid-specs-ab] Issue #1682: Define VP Token Validation steps more granularly (openid/connect)

[Kristina Yasuda]

New issue 1682: Define VP Token Validation steps more granularly
https://bitbucket.org/openid/connect/issues/1682/define-vp-token-validation-steps-more

Kristina Yasuda:

Current section on VP Token Validation is not really actionable. Even though Validation logic for each VP/VC is credential format specific \(and this should be explicitly stated\) the steps should be clear:

* determine number of VP\(s\) and which one contains which of the requested VC\(s\) using presentation\_submission
* validate each VP
* validate each VC
* validate holder binding
* validate compliance to trust framework/verifier policy if any
* anything else?

‌