Add Credential Offer Flow for Authorized Code Flow in the introduction (

#115)

5 approvals. open for more than a week. no objections to merge during Dec-14-2023 DCP WG call

* change sequence diagram for auth code flow

* Added Issuer-initiated Flow with Credential Offer to the Authorization Code Flow Introduction and added use case example for Wallet-initiated flow. minor improvements on Section 3.4 and 3.5

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Tobias Looker <tplooker@gmail.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Tobias Looker <tplooker@gmail.com>

* Apply suggestions from code review

Co-authored-by: Giuseppe De Marco <demarcog83@gmail.com>

* rename User to End-User in sequence diagrams

* Apply suggestions from code review

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Giuseppe De Marco <demarcog83@gmail.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Giuseppe De Marco <demarcog83@gmail.com>

* Apply suggestions from code review

Co-authored-by: Kristina <52878547+Sakurann@users.noreply.github.com>
Co-authored-by: Giuseppe De Marco <demarcog83@gmail.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Giuseppe De Marco <demarcog83@gmail.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Kristina <52878547+Sakurann@users.noreply.github.com>

* Apply suggestions from code review

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Paul Bastian <paul.bastian@posteo.de>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Paul Bastian <paul.bastian@posteo.de>

* Update openid-4-verifiable-credential-issuance-1_0.md

* Update openid-4-verifiable-credential-issuance-1_0.md

* Update openid-4-verifiable-credential-issuance-1_0.md

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

* fixed formatting of bullet list

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

* added history entry

* Update openid-4-verifiable-credential-issuance-1_0.md

* Update openid-4-verifiable-credential-issuance-1_0.md

Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>

---------

Co-authored-by: Tobias Looker <tplooker@gmail.com>
Co-authored-by: Giuseppe De Marco <demarcog83@gmail.com>
Co-authored-by: Kristina <52878547+Sakurann@users.noreply.github.com>
Co-authored-by: Torsten Lodderstedt <torsten@lodderstedt.net>
Co-authored-by: Judith <59833642+ju-cu@users.noreply.github.com>