Fuchsia: Implement handling of arrays in FIDL/JS

Bug: 883496
Change-Id: I4981cf288566aed5f95e3ca3b8632e5462203ee3
Reviewed-on: https://chromium-review.googlesource.com/c/1311262
Commit-Queue: Scott Graham <scottmg@chromium.org>
Reviewed-by: Wez <wez@chromium.org>
Cr-Commit-Position: refs/heads/master@{#605455}
3 files changed