Draft: VLCGoogleDriveTableViewController: Migrate authentication

What has been done:

• Migration to a more secure Google Drive authentication way using the GoogleSignIn library.
• No visual changes to the feature.
• rebase of the initial !792 (merged) merge request

What is left to be done:

• investigate why no media is listed

Closes #1351 (closed)

changed milestone to %3.4.0

added Cloud Maintenance labels

mentioned in merge request !792 (merged)

Closing this MR as a duplicate of !792 (merged)

closed