zoombot: zoombot service initial commit

Include readme file and sample configuration file

BUG=b:190150780
TEST=not testable for README and sample configure file

Change-Id: I1b19b3c2fcc8c3cdff95707d1223301f159263b4
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crostestutils/+/2939934
Reviewed-by: Vinayak Suley <vsuley@chromium.org>
Tested-by: Xibin Liu <xibin@google.com>
Tested-by: Vinayak Suley <vsuley@chromium.org>
Commit-Queue: Vinayak Suley <vsuley@chromium.org>
2 files changed