dev-cpp/robin-hood-hashing: Import ebuild

Required by uprev of vulkan-layers.

BUG=b:195986385
TEST=emerge-$BOARD robin-hood-hashing

Change-Id: I9dd5886a19fcc85dcac27563d4ec7fe0f461e9e1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/3098397
Tested-by: Chad Versace <chadversary@chromium.org>
Auto-Submit: Chad Versace <chadversary@chromium.org>
Reviewed-by: Matt Turner <msturner@google.com>
Reviewed-by: Chia-I Wu <olv@google.com>
Commit-Queue: Chad Versace <chadversary@chromium.org>
4 files changed