Release version 3.1.0

• Add QR image URL https://paradym.id/changelog?page=1#QR%20image%20url
  • invitationQrUri for didcomm connection invitations
  • didcommInvitation.invitationQrUri for DIDComm issuance offers or DIDComm verification requests
  • offerQrUri for OpenID4VC issuance offers
  • authorizationRequestQrUri for OpenID4VC verificaton requests