Add ability to enforce SSL in GCS Destination connector

[ryankfu]

Tell us about the problem you're trying to solve

Google Cloud Storage does not always enforce SSL

Describe the solution you’d like

Implement configuration for adding ssl parameter for Google Cloud Storage destination

Describe the alternative you’ve considered or used

A clear and concise description of any alternative solutions or features you've considered or are using today.

Additional context

HTPS/SSL

Are you willing to submit a PR?

Remove this with your answer :-)

[grishick]

Notes from grooming: GCS connector does not need HTTPS enforcement, because HTTPS is already enforced by GCS service. This ticket is a no-op.