Mock requireNativeComponent so manual mocking of UIManager properties isn't needed
Mock requireNativeComponent so manual mocking of UIManager properties isn't needed

Summary:
Fixes warnings such as `Warning: Native component for "RCTView" does not exist` when you don't mock the native view class on `UIManager`.

**Test plan (required)**

Run `npm test` with it and without it, notice that warnings are gone and results are the same.

cc cpojer
Closes https://github.com/facebook/react-native/pull/10486

Differential Revision: D4063500

Pulled By: cpojer

fbshipit-source-id: f6bdda1fdd1ad87958f435071d353684cb812af4

charlesvinette/react-native,forcedotcom/react-native,mironiasty/react-native,doochik/react-native,jasonnoahchoi/react-native,janicduplessis/react-native,tadeuzagallo/react-native,tszajna0/react-native,exponentjs/react-native,frantic/react-native,ptomasroos/react-native,javache/react-native,lprhodes/react-native,ptomasroos/react-native,skevy/react-native,farazs/react-native,rickbeerendonk/react-native,gitim/react-native,ptmt/react-native-macos,Maxwell2022/react-native,satya164/react-native,chnfeeeeeef/react-native,gilesvangruisen/react-native,makadaw/react-native,Livyli/react-native,tszajna0/react-native,shrutic123/react-native,aaron-goshine/react-native,jadbox/react-native,charlesvinette/react-native,eduardinni/react-native,cpunion/react-native,imjerrybao/react-native,clozr/react-native,kesha-antonov/react-native,cdlewis/react-native,kesha-antonov/react-native,exponentjs/react-native,DanielMSchmidt/react-native,hammerandchisel/react-native,hoangpham95/react-native,kesha-antonov/react-native,negativetwelve/react-native,tsjing/react-native,ptomasroos/react-native,clozr/react-native,salanki/react-native,gitim/react-native,hammerandchisel/react-native,eduardinni/react-native,formatlos/react-native,jevakallio/react-native,arthuralee/react-native,javache/react-native,alin23/react-native,makadaw/react-native,javache/react-native,frantic/react-native,clozr/react-native,charlesvinette/react-native,xiayz/react-native,exponentjs/react-native,ptmt/react-native-macos,orenklein/react-native,htc2u/react-native,janicduplessis/react-native,thotegowda/react-native,Guardiannw/react-native,cosmith/react-native,pandiaraj44/react-native,alin23/react-native,dikaiosune/react-native,cosmith/react-native,eduardinni/react-native,CodeLinkIO/react-native,javache/react-native,Andreyco/react-native,esauter5/react-native,rickbeerendonk/react-native,brentvatne/react-native,pandiaraj44/react-native,brentvatne/react-native,arthuralee/react-native,rickbeerendonk/react-native,salanki/react-native,Livyli/react-native,Guardiannw/react-native,esauter5/react-native,Andreyco/react-native,esauter5/react-native,farazs/react-native,tszajna0/react-native,gitim/react-native,imjerrybao/react-native,hoastoolshop/react-native,salanki/react-native,ndejesus1227/react-native,ptmt/react-native-macos,pandiaraj44/react-native,hoastoolshop/react-native,salanki/react-native,jasonnoahchoi/react-native,Ehesp/react-native,mironiasty/react-native,exponent/react-native,ptmt/react-native-macos,cpunion/react-native,aljs/react-native,negativetwelve/react-native,tgoldenberg/react-native,tadeuzagallo/react-native,tszajna0/react-native,esauter5/react-native,alin23/react-native,tgoldenberg/react-native,peterp/react-native,tgoldenberg/react-native,DanielMSchmidt/react-native,Ehesp/react-native,myntra/react-native,salanki/react-native,thotegowda/react-native,Bhullnatik/react-native,orenklein/react-native,dikaiosune/react-native,pandiaraj44/react-native,doochik/react-native,myntra/react-native,hoastoolshop/react-native,skevy/react-native,tadeuzagallo/react-native,cdlewis/react-native,exponent/react-native,imDangerous/react-native,adamjmcgrath/react-native,Ehesp/react-native,tszajna0/react-native,exponent/react-native,jevakallio/react-native,Purii/react-native,imDangerous/react-native,esauter5/react-native,shrutic123/react-native,xiayz/react-native,orenklein/react-native,alin23/react-native,clozr/react-native,peterp/react-native,doochik/react-native,tadeuzagallo/react-native,Ehesp/react-native,DannyvanderJagt/react-native,aljs/react-native,csatf/react-native,hammerandchisel/react-native,Bhullnatik/react-native,gilesvangruisen/react-native,DanielMSchmidt/react-native,DannyvanderJagt/react-native,negativetwelve/react-native,tszajna0/react-native,cpunion/react-native,DanielMSchmidt/react-native,shrutic123/react-native,ptomasroos/react-native,jadbox/react-native,hoangpham95/react-native,dikaiosune/react-native,myntra/react-native,satya164/react-native,arthuralee/react-native,jasonnoahchoi/react-native,CodeLinkIO/react-native,DannyvanderJagt/react-native,myntra/react-native,xiayz/react-native,jadbox/react-native,cpunion/react-native,formatlos/react-native,gilesvangruisen/react-native,hoastoolshop/react-native,pandiaraj44/react-native,makadaw/react-native,CodeLinkIO/react-native,clozr/react-native,ankitsinghania94/react-native,kesha-antonov/react-native,Maxwell2022/react-native,ndejesus1227/react-native,frantic/react-native,Purii/react-native,myntra/react-native,hoastoolshop/react-native,cdlewis/react-native,CodeLinkIO/react-native,tsjing/react-native,exponent/react-native,PlexChat/react-native,jadbox/react-native,Ehesp/react-native,hoangpham95/react-native,Andreyco/react-native,lprhodes/react-native,negativetwelve/react-native,jevakallio/react-native,ndejesus1227/react-native,orenklein/react-native,lprhodes/react-native,Ehesp/react-native,mironiasty/react-native,htc2u/react-native,aljs/react-native,ptomasroos/react-native,dikaiosune/react-native,tadeuzagallo/react-native,alin23/react-native,thotegowda/react-native,xiayz/react-native,forcedotcom/react-native,tszajna0/react-native,callstack-io/react-native,cdlewis/react-native,facebook/react-native,adamjmcgrath/react-native,clozr/react-native,happypancake/react-native,Guardiannw/react-native,arthuralee/react-native,kesha-antonov/react-native,doochik/react-native,tgoldenberg/react-native,jevakallio/react-native,hoangpham95/react-native,chnfeeeeeef/react-native,eduardinni/react-native,orenklein/react-native,htc2u/react-native,jadbox/react-native,Livyli/react-native,satya164/react-native,CodeLinkIO/react-native,PlexChat/react-native,Ehesp/react-native,doochik/react-native,javache/react-native,ndejesus1227/react-native,pandiaraj44/react-native,brentvatne/react-native,makadaw/react-native,Bhullnatik/react-native,xiayz/react-native,gilesvangruisen/react-native,CodeLinkIO/react-native,imjerrybao/react-native,Livyli/react-native,shrutic/react-native,Guardiannw/react-native,aljs/react-native,jadbox/react-native,aaron-goshine/react-native,Purii/react-native,mironiasty/react-native,brentvatne/react-native,callstack-io/react-native,salanki/react-native,negativetwelve/react-native,formatlos/react-native,Maxwell2022/react-native,gitim/react-native,javache/react-native,doochik/react-native,Guardiannw/react-native,jasonnoahchoi/react-native,gitim/react-native,frantic/react-native,pandiaraj44/react-native,janicduplessis/react-native,ndejesus1227/react-native,ptmt/react-native-macos,janicduplessis/react-native,imDangerous/react-native,Bhullnatik/react-native,aaron-goshine/react-native,Andreyco/react-native,tsjing/react-native,facebook/react-native,thotegowda/react-native,ptomasroos/react-native,shrutic123/react-native,rickbeerendonk/react-native,farazs/react-native,Purii/react-native,janicduplessis/react-native,satya164/react-native,farazs/react-native,Purii/react-native,ankitsinghania94/react-native,xiayz/react-native,makadaw/react-native,Livyli/react-native,peterp/react-native,satya164/react-native,farazs/react-native,hoastoolshop/react-native,Andreyco/react-native,htc2u/react-native,cpunion/react-native,Swaagie/react-native,cdlewis/react-native,exponentjs/react-native,ankitsinghania94/react-native,cosmith/react-native,lprhodes/react-native,arthuralee/react-native,jasonnoahchoi/react-native,farazs/react-native,Maxwell2022/react-native,callstack-io/react-native,Livyli/react-native,gilesvangruisen/react-native,ndejesus1227/react-native,happypancake/react-native,kesha-antonov/react-native,frantic/react-native,xiayz/react-native,chnfeeeeeef/react-native,facebook/react-native,negativetwelve/react-native,Livyli/react-native,csatf/react-native,callstack-io/react-native,csatf/react-native,negativetwelve/react-native,tadeuzagallo/react-native,charlesvinette/react-native,PlexChat/react-native,formatlos/react-native,tadeuzagallo/react-native,chnfeeeeeef/react-native,Bhullnatik/react-native,tsjing/react-native,shrutic/react-native,mironiasty/react-native,jasonnoahchoi/react-native,negativetwelve/react-native,facebook/react-native,ptomasroos/react-native,adamjmcgrath/react-native,peterp/react-native,farazs/react-native,DanielMSchmidt/react-native,CodeLinkIO/react-native,ankitsinghania94/react-native,exponent/react-native,peterp/react-native,exponentjs/react-native,forcedotcom/react-native,hammerandchisel/react-native,Purii/react-native,jevakallio/react-native,hoangpham95/react-native,chnfeeeeeef/react-native,salanki/react-native,htc2u/react-native,jasonnoahchoi/react-native,tgoldenberg/react-native,dikaiosune/react-native,kesha-antonov/react-native,shrutic123/react-native,cpunion/react-native,orenklein/react-native,rickbeerendonk/react-native,cosmith/react-native,ptomasroos/react-native,gilesvangruisen/react-native,Guardiannw/react-native,alin23/react-native,javache/react-native,farazs/react-native,tgoldenberg/react-native,tszajna0/react-native,Bhullnatik/react-native,DanielMSchmidt/react-native,javache/react-native,jadbox/react-native,PlexChat/react-native,DanielMSchmidt/react-native,hoastoolshop/react-native,ndejesus1227/react-native,callstack-io/react-native,esauter5/react-native,imDangerous/react-native,tgoldenberg/react-native,aljs/react-native,formatlos/react-native,aaron-goshine/react-native,kesha-antonov/react-native,ndejesus1227/react-native,mironiasty/react-native,skevy/react-native,adamjmcgrath/react-native,PlexChat/react-native,Bhullnatik/react-native,Swaagie/react-native,gilesvangruisen/react-native,callstack-io/react-native,ankitsinghania94/react-native,negativetwelve/react-native,shrutic/react-native,orenklein/react-native,rickbeerendonk/react-native,forcedotcom/react-native,facebook/react-native,Purii/react-native,esauter5/react-native,brentvatne/react-native,myntra/react-native,thotegowda/react-native,ptmt/react-native-macos,gitim/react-native,cpunion/react-native,imjerrybao/react-native,shrutic123/react-native,hoastoolshop/react-native,mironiasty/react-native,exponentjs/react-native,htc2u/react-native,adamjmcgrath/react-native,exponentjs/react-nativ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