Enable the ability to set the number of TLSv1.3 session tickets sent

We send a session ticket automatically in TLSv1.3 at the end of the
handshake. This commit provides the ability to set how many tickets should
be sent. By default this is one.

Fixes #4978

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5227)