Summary:This change adds native animated support for Animated.multiply nodes.
Animated.multiply allows for defining nodes that would output a product of values of the input nodes.
**Test Plan**
Run JS tests: `npm test Libraries/Animated/src/__tests__/AnimatedNative-test.js`
Run java tests: `buck test ReactAndroid/src/test/java/com/facebook/react/animated`
Closes https://github.com/facebook/react-native/pull/7071
Differential Revision: D3197663
fb-gh-sync-id: 35f64244a2482c487a81e5e7cd08f3c0e56d9b78
fbshipit-source-id: 35f64244a2482c487a81e5e7cd08f3c0e56d9b78
ec5dfbf8c7