Add Sheets generation to dEQP visualization script. Script will parse the output from bb and format it and append to a Sheet. The sheet ID can be set with the 'spreadsheet' arg, or it defaults to a shared sheet on go/angle-status-generated. The user credentials must be pointed to with the 'auth_path' arg. Bug: angleproject:3369 Change-Id: Iafc9f3f96610f2ea01a9802526282cf5f14e1b2e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1572482 Commit-Queue: Jonah Ryan-Davis <jonahr@google.com> Reviewed-by: Geoff Lang <geofflang@chromium.org>