Update the configuration file googleapis generation

Looked through all APIs and added all non-beta APIs to google the
googleapis package. Added all beta APIs to the googleapis_beta package.

Added a comment URL for looking up the API web page (hopefuly they will
not become stale).

Removed the Dart code and added an initial README with instructions
to get started.

R=kustermann@google.com
BUG=

Review URL: https://codereview.chromium.org//539113002