- Update test expectations
- Add gles1 sample app that shows simple lighting.

BUG=angleproject:2306

Change-Id: I545dcf860374abd9d628b0d554153cb634098f6d
Reviewed-on: https://chromium-review.googlesource.com/1065501
Commit-Queue: Lingfeng Yang <lfy@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>