This CL adds a comparison for the performance of getting and setting
float32 and float64 values with DataViews and with TypedArrays.

Since TypedArrays do not specify endianness, we can't compare
performance across both possible endiannesses, but this is better
than no comparison at all.

Change-Id: Iea54b942c0bb8168e9d8002d94e2bb9bc6566331
Reviewed-on: https://chromium-review.googlesource.com/1120250Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Théotime Grohens <theotime@google.com>
Cr-Commit-Position: refs/heads/master@{#54158}