Lens Controller - add a queryImage method to support passing back app intent key from Lens Prime SDK.

The app intent key will be used when generate the Lens deeplink intent in LensUtils.java.

Change-Id: I40a58eaabaadb23a3113825400c3be95396aa4f0
Bug: 170126006
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2450709
Commit-Queue: Yu Su <yusuyoutube@google.com>
Reviewed-by: Theresa  <twellington@chromium.org>
Reviewed-by: Ben Goldberger <benwgold@google.com>
Reviewed-by: Sinan Sahin <sinansahin@google.com>
Cr-Commit-Position: refs/heads/master@{#814967}