Add basic E2E test for the Vulkan layer. (#1891)
Add basic E2E test for the Vulkan layer. (#1891)

This adds a simple E2E test for the new Vulkan layer, which is
based on Trata.
It requires the layer to be deployed, and Trata be started with
the layer enabled.

Test: Run E2E test manually.
Bug: http://b/180487327
google/orbit,google/orbit,google/orbit,google/orbit