Add SSL certificate/key support for MySQL schema dumps (MariaDB safe)

[hazratmilad]

This PR adds optional SSL support to MySqlSchemaState when dumping schema via mysqldump.
The following improvements are included:

• SSL CERT, KEY support

Values defined in PDO options are now passed through to the dump command.

• MariaDB compatibility

MariaDB clients do not universally support --ssl-cert, --ssl-key, or --ssl-verify-server-cert.
These options are now applied only when the connection is not MariaDB.

[rodrigopedra]

Shouldn't this be added to the Illuminate\Database\Schema\MariaDbSchemaState class instead?

You can override that method on that class and add the MariaDB-specific code to it.

[taylorotwell]

Thanks for your pull request to Laravel!

Unfortunately, I'm going to delay merging this code for now. To preserve our ability to adequately maintain the framework, we need to be very careful regarding the amount of code we include.

If applicable, please consider releasing your code as a package so that the community can still take advantage of your contributions!

[hazratmilad]

Shouldn't this be added to the Illuminate\Database\Schema\MariaDbSchemaState class instead?

You can override that method on that class and add the MariaDB-specific code to it.

Hi, no, we can't do that. because MariaDB clients do not universally support --ssl-cert, --ssl-key, or --ssl-verify-server-cert.

[rodrigopedra]

My bad. I missed the ! not operator.