Incorrect type for message in FireFlyTokenTransferRequest

[shorsher]

It seems the type for message within FireFlyTokenTransferRequest is incorrect. Instead of accepting a message object, it is expecting a string.

    requestBody: {
      content: {
        "application/json": {
          ....
          ....
          /**
           * Format: uuid
           * @description The UUID of a message that has been correlated with this transfer using the data field of the transfer in a compatible token connector
           */
          message?: string;
          ....
          ....
        };
      };
    };

https://github.com/hyperledger/firefly/blob/main/pkg/core/tokentransfer.go#L29-L55
This may be a limitation of the swagger generator, because Message is type fftypes.UUID on TokenTransfer, but the actual input for that api is TokenTransferInput, which wraps TokenTransfer and also has a Message field of type MessageInOut.