Jest Mocks for NetInfo and Linking
Jest Mocks for NetInfo and Linking

Summary:
This isn't exhaustive, but it's a few more functions that these modules normally export which need to be stubbed.
Closes https://github.com/facebook/react-native/pull/14432

Differential Revision: D5345928

Pulled By: shergin

fbshipit-source-id: f333056ac43ce7c75c6734bca8dc9035745721df

ptmt/react-native-macos,formatlos/react-native,mironiasty/react-native,makadaw/react-native,jevakallio/react-native,janicduplessis/react-native,ptmt/react-native-macos,jevakallio/react-native,thotegowda/react-native,rickbeerendonk/react-native,farazs/react-native,rickbeerendonk/react-native,Bhullnatik/react-native,arthuralee/react-native,ptmt/react-native-macos,exponentjs/react-native,doochik/react-native,myntra/react-native,jevakallio/react-native,makadaw/react-native,hoangpham95/react-native,hoastoolshop/react-native,ptmt/react-native-macos,cpunion/react-native,jevakallio/react-native,farazs/react-native,doochik/react-native,javache/react-native,brentvatne/react-native,cdlewis/react-native,dikaiosune/react-native,cdlewis/react-native,jevakallio/react-native,exponentjs/react-native,frantic/react-native,Bhullnatik/react-native,makadaw/react-native,pandiaraj44/react-native,hoangpham95/react-native,negativetwelve/react-native,frantic/react-native,dikaiosune/react-native,janicduplessis/react-native,facebook/react-native,janicduplessis/react-native,rickbeerendonk/react-native,thotegowda/react-native,pandiaraj44/react-native,brentvatne/react-native,hoastoolshop/react-native,myntra/react-native,kesha-antonov/react-native,negativetwelve/react-native,hammerandchisel/react-native,pandiaraj44/react-native,jevakallio/react-native,myntra/react-native,javache/react-native,makadaw/react-native,cpunion/react-native,negativetwelve/react-native,hoastoolshop/react-native,myntra/react-native,Bhullnatik/react-native,cdlewis/react-native,cpunion/react-native,hoastoolshop/react-native,pandiaraj44/react-native,hammerandchisel/react-native,kesha-antonov/react-native,makadaw/react-native,dikaiosune/react-native,farazs/react-native,mironiasty/react-native,formatlos/react-native,doochik/react-native,makadaw/react-native,brentvatne/react-native,hoangpham95/react-native,hoangpham95/react-native,thotegowda/react-native,brentvatne/react-native,farazs/react-native,farazs/react-native,kesha-antonov/react-native,myntra/react-native,thotegowda/react-native,thotegowda/react-native,cdlewis/react-native,javache/react-native,brentvatne/react-native,kesha-antonov/react-native,doochik/react-native,rickbeerendonk/react-native,exponentjs/react-native,farazs/react-native,cdlewis/react-native,hammerandchisel/react-native,thotegowda/react-native,mironiasty/react-native,arthuralee/react-native,Bhullnatik/react-native,cdlewis/react-native,Bhullnatik/react-native,cdlewis/react-native,facebook/react-native,facebook/react-native,hoangpham95/react-native,facebook/react-native,janicduplessis/react-native,janicduplessis/react-native,myntra/react-native,doochik/react-native,cpunion/react-native,mironiasty/react-native,hoastoolshop/react-native,javache/react-native,javache/react-native,exponentjs/react-native,negativetwelve/react-native,thotegowda/react-native,frantic/react-native,dikaiosune/react-native,dikaiosune/react-native,kesha-antonov/react-native,rickbeerendonk/react-native,javache/react-native,rickbeerendonk/react-native,negativetwelve/react-native,facebook/react-native,formatlos/react-native,facebook/react-native,exponent/react-native,rickbeerendonk/react-native,exponentjs/react-native,pandiaraj44/react-native,arthuralee/react-native,hammerandchisel/react-native,facebook/react-native,doochik/react-native,arthuralee/react-native,farazs/react-native,kesha-antonov/react-native,farazs/react-native,Bhullnatik/react-native,exponent/react-native,jevakallio/react-native,cpunion/react-native,mironiasty/react-native,doochik/react-native,frantic/react-native,janicduplessis/react-native,formatlos/react-native,hoangpham95/react-native,facebook/react-native,exponentjs/react-native,pandiaraj44/react-native,formatlos/react-native,makadaw/react-native,jevakallio/react-native,formatlos/react-native,hammerandchisel/react-native,cdlewis/react-native,javache/react-native,doochik/react-native,jevakallio/react-native,javache/react-native,brentvatne/react-native,janicduplessis/react-native,hammerandchisel/react-native,arthuralee/react-native,kesha-antonov/react-native,rickbeerendonk/react-native,exponent/react-native,hoangpham95/react-native,makadaw/react-native,exponent/react-native,exponent/react-native,ptmt/react-native-macos,hoastoolshop/react-native,javache/react-native,brentvatne/react-native,hammerandchisel/react-native,myntra/react-native,hoangpham95/react-native,ptmt/react-native-macos,negativetwelve/react-native,farazs/react-native,formatlos/react-native,formatlos/react-native,cpunion/react-native,hoastoolshop/react-native,exponentjs/react-native,mironiasty/react-native,dikaiosune/react-native,cpunion/react-native,doochik/react-native,Bhullnatik/react-native,exponent/react-native,exponent/react-native,frantic/react-native,negativetwelve/react-native,ptmt/react-native-macos,thotegowda/react-native,myntra/react-native,dikaiosune/react-native,negativetwelve/react-native,exponentjs/react-native,janicduplessis/react-native,myntra/react-native,rickbeerendonk/react-native,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