use scrollview for lightbox on ios
use scrollview for lightbox on ios

Reviewed By: wwalser

Differential Revision: D6858376

fbshipit-source-id: a9ff9c71cb4ad56a4f5af73a4e86de52ddf75700

javache/react-native,exponentjs/react-native,janicduplessis/react-native,pandiaraj44/react-native,myntra/react-native,myntra/react-native,pandiaraj44/react-native,facebook/react-native,exponent/react-native,facebook/react-native,exponent/react-native,exponent/react-native,hoastoolshop/react-native,exponentjs/react-native,myntra/react-native,hammerandchisel/react-native,hoastoolshop/react-native,facebook/react-native,arthuralee/react-native,hoastoolshop/react-native,hammerandchisel/react-native,pandiaraj44/react-native,hammerandchisel/react-native,arthuralee/react-native,facebook/react-native,facebook/react-native,exponent/react-native,janicduplessis/react-native,javache/react-native,exponent/react-native,exponentjs/react-native,exponentjs/react-native,javache/react-native,javache/react-native,arthuralee/react-native,javache/react-native,pandiaraj44/react-native,pandiaraj44/react-native,hoangpham95/react-native,hoangpham95/react-native,pandiaraj44/react-native,myntra/react-native,janicduplessis/react-native,myntra/react-native,hoastoolshop/react-native,hoastoolshop/react-native,myntra/react-native,pandiaraj44/react-native,exponentjs/react-native,janicduplessis/react-native,hoangpham95/react-native,facebook/react-native,myntra/react-native,arthuralee/react-native,arthuralee/react-native,hoastoolshop/react-native,janicduplessis/react-native,javache/react-native,hoangpham95/react-native,facebook/react-native,hoastoolshop/react-native,janicduplessis/react-native,hoangpham95/react-native,facebook/react-native,hammerandchisel/react-native,javache/react-native,hoangpham95/react-native,janicduplessis/react-native,javache/react-native,javache/react-native,hammerandchisel/react-native,exponentjs/react-native,hammerandchisel/react-native,exponent/react-native,pandiaraj44/react-native,exponent/react-native,hoastoolshop/react-native,hammerandchisel/react-native,myntra/react-native,janicduplessis/react-native,exponentjs/react-native,myntra/react-native,facebook/react-native,exponentjs/react-native,hoangpham95/react-native,hammerandchisel/react-native,exponent/react-native,hoangpham95/react-native