feat/add-num-retries-to-client

[tohuynh]

Pull request recommendations:

• Name your pull request your-development-type/short-description. Ex: feature/read-tiff-files
• Link to any relevant issue in the PR description. Ex: Resolves [feature/add-link-checker #12], adds tiff file format support
• Provide context of changes.
• Add num_retries to google API client build, that will be passed to downstream methods. See Understanding num_retries in discovery.build()? googleapis/google-api-python-client#1049 (comment)
• Remove get_spreadsheet_title
• Provide relevant tests for your feature or bug fix.
• Provide or update documentation for any feature added by your pull request.

Thanks for contributing!