Add runtime.interactions(for:) API for fetching interactions associated with a…

Authored by featherless on Mon, Apr 17, 1:34 PM.

Description

Add runtime.interactions(for:) API for fetching interactions associated with a given target.

Summary: Closes https://github.com/material-motion/material-motion-swift/issues/104

Reviewers: O2 Material Motion, O4 Material Apple platform reviewers, Material Motion, appsforartists, markwei

Reviewed By: O2 Material Motion, O4 Material Apple platform reviewers, Material Motion, appsforartists, markwei

Subscribers: markwei

Tags: Material Motion

Differential Revision: http://codereview.cc/D3048