Add test for SSL_new_session_ticket()

Add test for SSL_new_session_ticket()

Run a normal handshake and then request some extra tickets,
checking that the new_session_cb is called the expected number of
times.  Since the tickets are generated in the same way as other
tickets, there should not be a need to verify that these specific ones
can be used to resume.

Run the test with both zero and a non-zero number of tickets issued in the
initial handshake.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11416)