Add Test Runner to Long Term Health Tool
Add Test Runner to Long Term Health Tool

In this CL, a test runner is added into the long term health tool. Test runner does two
things: 1. install the APK 2. run the benchmark on this APK.

Bug: chromium:863390
Change-Id: Iafcedcfa999dd8bac78018a6d298265a1940ac41
Reviewed-on: https://chromium-review.googlesource.com/1158692
Commit-Queue: Leonard Ge <a985a80ed457409fab3d693f0de5252e07c70d59@google.com>
Reviewed-by: Juan Antonio Navarro Pérez <1649bb5e6b9eafe026580e338065dc64ba6b80b2@chromium.org>

catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult