To achieve per-connection settings on the Mongo() jstest class, we will need a way to configure the individual transports used in the mongo shell, which today uses a single connection and therefore a single transport layer (manager) instance.

transport/asio/asio_transport_layer.cpp:1492 gives an example of how this can be constructed.

Once we have a transient SSL manager constructed, we can provide additional SSL parameters through a connection string parameter (see how this is done in serverless implementations)

This ticket should not break any existing tests and is a backend refactor only.