[OpenID-Specs-eKYC-IDA] Issue #1314: Consider adding notes under each evidence type (openid/ekyc-ida)

[mhainework]

New issue 1314: Consider adding notes under each evidence type
https://bitbucket.org/openid/ekyc-ida/issues/1314/consider-adding-notes-under-each-evidence

Mark Haine:

It would be useful for implementers to understand that they may add claims under each of the evidence types to contain the details collected from a piece of evidence and that these could include claims about the subject such as `name` or `address` where these are used the values should be in the standard format used by that specific evidence type such as ICAO for passport.