Consider using setNativeProps for smoother performance

[David Alexander Bjerremose]

As of the React Native documentation, this is a suggestion to use setNativeProps on the element being transformed/rotated/scaled.

See https://facebook.github.io/react-native/docs/panresponder.html

Will attach pull request to this soon.

EDIT: Referencing pull request #9 which is untested, but should be completely functional

[David Alexander Bjerremose]

Closing as @keske has merged #9. Feel free to open if issues arrise