feat: revocation support for W3C status list (bitstring)

[vivekayanworks]

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• [x] Understanding basics of BitStringStatusList
• [x] Change existing type of jsonld credentialFormat to support revocable credentials
• [x] Understanding how we can implement issuance, revocation and verification from existing packages to support typescript (Packages exist in js)
• [ ] BitStringStatusListCredential
  • [ ] Implement a separate API to create BitStringStatusListCredential
    • [ ] Creating encoded bitstring
    • [ ] Signing and storing BitStringStatusListCredential
    • [ ] Hosing the Credential (Optional)
  • [ ] API to retrieve BittringStatusListCredential
  • [ ] API to change status from the bitstring status list
    • [ ] Updating status list
    • [ ] Creating new proof
    • [ ] Updating the hosted BitstringStatusListCredential (Optional)
• [ ] Verification of status of credential (Need to understand)