* Fixed mysql connection to include additional options for SSL Cert and Key. This allows for TLS client communication.
* Modified config options for mysql database to make SSL/TLS settings optional.
SSL/TLS CA, CERT, and KEY are optional. If they are not provided the array_filter() will remove them.
MYSQL_ATTR_SSL_VERIFY_SERVER_CERT is outside array_filter() because the function will remove the option if it is falsey; however there are times when that variable must be set to false.
* fix style
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Co-authored-by: Tony Murray <murraytony@gmail.com>