Another Fix for Bug #68344 MySQLi does not provide way to disable peer certificate...

Another Fix for Bug #68344  MySQLi does not provide way to disable peer certificate validation
Added the possibility to explicitly state that the peer certificate should not be checked.
Back to the default - checking the certificate.
Exported MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT
Usage : mysqli_real_connect( , , , , , MYSQLI_CLIENT_SSL | MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT)

If mysqli_ssl_set() is not called, but only MYSQLI_CLIENT_SSL is passed, without the (don't) very flag,
then no verification takes place.