The python script allows to inject hints into a Wasm module. Hints are
injected into a newly created custom section named "compilationHints"
that is used by the compiler to determine its compilation strategy. The
section is placed after the functions section and before the code
section.

Bug: v8:9003
Change-Id: I531c57e4269ff9ae42b95be3515d2409627d6fb9
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1619865
Commit-Queue: Frederik Gossen <frgossen@google.com>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61797}