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>