[OpenID-Specs-eKYC-IDA] Issue #1297: check_details should have its own timestamp (openid/ekyc-ida)

[Julian White]

New issue 1297: check_details should have its own timestamp
https://bitbucket.org/openid/ekyc-ida/issues/1297/check_details-should-have-its-own

Julian White:

`check_details` should have its own timestamp as it may have been performed asynchronously from the point in time that the evidence was captured, especially if that involved a manual process. Suggest adding the following to `check_details` :

`time`: OPTIONAL. Time stamp in ISO 8601:2004 \[@!ISO8601-2004\] `YYYY-MM-DDThh:mm[:ss]TZD` format representing when the check was performed.