Ability to switch trust anchors when a credential is issued and verified

[albinpa]

For e.g. if a cloud digital wallet is configured with multiple trust anchors for .e.g

1. NordXDataspace
2. IDUnion
3. Swiss eID

Usecase 1:

Organisation A (Data Source) issued a credential based on identifiers from default trust anchor.

Usecase 2:

Organisation A (Data Using Service) would like to consume data issued based on identifiers from another trust anchor.

Trust anchor switching strategy

The wallet should then switch trust anchors until it finds the right match. Once the right match is found, proceed to finish the operation.