refactor(ParallaxImage): allow overriding default styles
refactor(ParallaxImage): allow overriding default styles

archriss/react-native-snap-carousel,houseofstylist/react-native-snap-carousel,houseofstylist/react-native-snap-carousel,archriss/react-native-snap-carousel,houseofstylist/react-native-snap-carousel,archriss/react-native-snap-carousel,archriss/react-native-snap-carousel