Verify proofs by calling the signer service

Before this commit, the infohub was verifying VP proofs by itself. Now this is delegated to the signer service for consistency, as the signer service can act as both producer and verifier of proofs.

Closes #14 (closed)

changed milestone to %Sprint 11 - ph2

added DevInProgress label

requested review from @yordan.kinkov

assigned to @lyuben.penkovski

added Need review label

added 4 commits

• 55ac3038...5e368f8d - 3 commits from branch main
• 8e689a7b - Verify proofs by calling the signer service

Compare with previous version

added 1 commit

• 2c295f77 - Remove unnecessary dependencies from vendor

Compare with previous version

LGTM

merged

mentioned in commit a4f5aef2