support SSL configuration for mysql and postgres

[cmoog]

Follow-up to the fix for mssql #7

[noam-honig]

Really needed - it should be just a flag

[AJTonyKane]

Except that, for me, a successful "control" connection via SQLTools required tweaking a couple of flags:

For what it's worth, the following is the error attempting same localhost port SSL mapping via SQL Notebook: