Modify OCSP to use alt MD for cert IDs in responses

Modify OCSP to use alt MD for cert IDs in responses

Modify openssl OCSP utility to produce certIDs in responses using other
hash algorithms (e.g. SHA256).

Added option -rcid for this purpose.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5274)