Feature::TimestampQuery is used for timestamp query in command encoder
and compute/render descriptor to match WebGPU SPEC.
Add a new feature timestamp-query-inside-passes for writeTimestamp API
on compute pass and render pass.
Split timestamp query tests in dawn_end2end_tests and dawn_unit_tests.
Bug: dawn:1193, dawn:1250
Change-Id: I8dd66c1d40939877e37ec2b979a573cc4812c21f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/106500
Reviewed-by: Austin Eng <enga@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Hao Li <hao.x.li@intel.com>