Altering schema definitions to incorporate optional fields for VC int…

…erfaces

docs/composedb/examples/verifiable-credentials.mdx

@@ -327,14 +327,21 @@ interface VerifiableCredential
   context: [String!]! @string(maxLength: 1000) @list(maxLength: 100)
   type: [String!]! @string(maxLength: 1000) @list(maxLength: 100)
   credentialSchema: CredentialSchema!
+  credentialStatus: CredentialStatus
   issuanceDate: DateTime!
+  expirationDate: DateTime
 }
 
 type Issuer {
   id: String! @string(maxLength: 1000)
   name: String @string(maxLength: 1000)
 }
 
+type CredentialStatus {
+  id: String! @string(maxLength: 1000)
+  type: String! @string(maxLength: 1000)
+}
+
 type CredentialSchema {
   id: String! @string(maxLength: 1000)
   type: String! @string(maxLength: 1000)
@@ -349,11 +356,13 @@ interface VCEIP712Proof implements VerifiableCredential
   context: [String!]! @string(maxLength: 1000) @list(maxLength: 100)
   type: [String!]! @string(maxLength: 1000) @list(maxLength: 100)
   credentialSchema: CredentialSchema!
+  credentialStatus: CredentialStatus
   issuanceDate: DateTime!
+  expirationDate: DateTime
   proof: ProofEIP712!
 }
 
-## generalized JWT proof type
+## generalized JWT proof interface
 interface VCJWTProof implements VerifiableCredential
   @createModel(description: "A verifiable credential interface of type JWT")
 {
@@ -362,7 +371,9 @@ interface VCJWTProof implements VerifiableCredential
   context: [String!]! @string(maxLength: 1000) @list(maxLength: 100)
   type: [String!]! @string(maxLength: 1000) @list(maxLength: 100)
   credentialSchema: CredentialSchema!
+  credentialStatus: CredentialStatus
   issuanceDate: DateTime!
+  expirationDate: DateTime
   proof: ProofJWT!
 }
 
@@ -421,7 +432,9 @@ type VerifiableCredentialEIP712 implements VerifiableCredential & VCEIP712Proof
   context: [String!]! @string(maxLength: 1000) @list(maxLength: 100)
   type: [String!]! @string(maxLength: 1000) @list(maxLength: 100)
   credentialSchema: CredentialSchema!
+  credentialStatus: CredentialStatus
   issuanceDate: DateTime!
+  expirationDate: DateTime
   proof: ProofEIP712!
   credentialSubject: CredentialSubject! 
 }
@@ -436,7 +449,9 @@ type VerifiableCredentialJWT implements VerifiableCredential & VCJWTProof
   context: [String!]! @string(maxLength: 1000) @list(maxLength: 100)
   type: [String!]! @string(maxLength: 1000) @list(maxLength: 100)
   credentialSchema: CredentialSchema!
+  credentialStatus: CredentialStatus
   issuanceDate: DateTime!
+  expirationDate: DateTime
   proof: ProofJWT!
   credentialSubject: CredentialSubject! 
 }