Summary:
We need to move animated native module calls to synchronous so we can properly thread them in with mounting instructions in Fabric. Some of them take callbacks so we need to add support for that when switching to synchronous.
A side benefit is that we can unify codepaths a little more with async callbacks.
Reviewed By: shergin
Differential Revision: D14790898
fbshipit-source-id: dc222b9e74375e046e8a9b1b19d72f652dc6722c