Added support for FlatList components for Android devices

[MrPocketsss]

Is it a bugfix ?

• No

Is it a new feature ?

• Yes, added new prop to Swiper component to allow ScrollView/Flatlists nested within swiper to work on Android devices (iOS works without this update)
  -React Native ScrollView

Describe what you've done:

Added the prop nestedScrollEnabled to propTypes, and defaultProps.
Example:
<ScrollView nestedScrollEnabled={true}> <FlatList /> </ScrollView>

How to test it ?

Add a Flatlist component to previous version of Swiper and this one. The new version will work on Android, the old won't