Add create_bundle support for GN

Docs-Preview: https://skia.org/?cl=75383
Bug: skia:7339
Change-Id: I985734e8b7b5af21a82cb8ee59acbfb5ff1d3ff7
Reviewed-on: https://skia-review.googlesource.com/75383
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
10 files changed