[current results] Add 'fetch' and 'getResults' subcommands to client
[current results] Add 'fetch' and 'getResults' subcommands to client

Change-Id: Ic99e8c665ff5892cbebd5b46f8240bb1dcaa5a7e
Reviewed-on: https://dart-review.googlesource.com/c/dart_ci/+/151243
Reviewed-by: Alexander Thomas <29642742b6693024c89de8232f2e2542cf7eedf7@google.com>

dart-lang/dart_ci,dart-lang/dart_ci,dart-lang/dart_ci,dart-lang/dart_ci