feat(core): implement multi-sig operations

[Sotatek-HocNguyena]

Description

Explore how to create an OOBI for a multi-sig identifier, and explore how what happens when receiving a credential to a multi-sig identifier in the wallet. (the issuer can be single sig)

Checklist before requesting a review

Issue ticket number and link

• This PR has a valid ticket number or issue: DTIS-958

Testing & Validation

• This PR has been tested/validated in IOS, Android and browser.
• The code has been tested locally with test coverage match expectations.
• Added new Unit/Component testing (if relevant).

Security

• No secrets are being committed (i.e. credentials, PII)
• This PR does not have any significant security implications

Code Review

• There is no unused functionality or blocks of commented out code (otherwise, please explain below)
• In addition to this PR, all relevant documentation (e.g. Confluence) and architecture diagrams (e.g. Miro) were updated

[github-actions]

Vercel PR (merge commit) deploy URL: https://cf-identity-wallet-d4xxzk25t.vercel.app

[github-actions]

Vercel PR (merge commit) deploy URL: https://cf-identity-wallet-cu6vgx4x9.vercel.app

[iFergal]

will close this now in favour of the other smaller PRs being created