webnn: add fp16 conformance tests for element-wise logical operations

Bug: 345280754
Change-Id: I42cc3ca45e7f1c34b6a8804dda56f21a2586d168
Cq-Include-Trybots: luci.chromium.try:win11-blink-rel, mac14.arm64-blink-rel, mac14-blink-rel, mac15.arm64-blink-rel, linux-blink-rel
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5998592
Reviewed-by: ningxin hu <[email protected]>
Auto-Submit: Feng Dai <[email protected]>
Reviewed-by: Austin Sullivan <[email protected]>
Commit-Queue: Austin Sullivan <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1401901}