Due to limitations in BodyMovin/AE JSX, full effect data is not
available (specifically the "channel range" property).
We only support static master hue, static master saturation and
static master lightness at this point.
This CL also introduces a new animation builder pattern:
DiscardableAdapterBase and attachDiscardableAdapter().
The former is a base class for adapters with full animator ownership.
This enables a) capturing raw adapter pointers in animator lambdas and
b) syncing to SG only once, after all local animators are updated).
The latter is a helper for managing adapter creation and optional
destruction (when all adapter properties are static we can discard it).
Change-Id: Iecc4b78830e5464e7958cb12cdfd75a61010aa25
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/231956
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
