Google Cloud SQL - Source Connector

## Tell us about the new connector you’d like to have
Which source and which destination?

* Source - Google Cloud SQL (or update MySQL source connectors with client certificate validation)

Do you need a specific version of the underlying data source e.g: you specifically need support for an older version of the API or DB?

* I don't believe so. I think the current version of the JDBC should handle this just fine, but would need a way to store the provided certificates in a keystore, or reference an existing keystore file.

## Describe the context around this new connector
Which team in your company wants this integration, what for? This helps us understand the use case.

* DevOps and technical non-IT users who create reports, who only have access to our data warehouse in BigQuery.

How often do you want to run syncs?

* Same intervals as MySQL native connector.

If this is an API source connector, which entities/endpoints do you need supported?

* N/A

## Describe the alternative you are considering or using

Currently the ways we've accomplished this is either via a Linked Server in SQL Server (via ODBC) or by pulling the rows down as a CSV and using the File connector to ingest.