- remove ssl_ext_lookup and replace it with ssl_ext_list

- change ssl_expr_eval_oid to use ssl_ext_list

This change provides for a singfle function that provides an array of all
values from a certificate that match a given extension and removes the
duplictaed code that was present.

Reviewed by: Joe Orton


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@289444 13f79535-47bb-0310-9956-ffa450edef68