No podspect nor podfile for react native >= 0.6 for iOS

[billygl]

To fix it,
we added to the project podfile:
pod 'react-native-pdf-view', :path => '../node_modules/react-native-pdf-view'
And we added two files Podfile and react-native-pdf-view.podspec to the node_modules/react-native-pdf-view.
We attached the files using txt extension.
Podfile.txt
react-native-pdf-view.podspec.txt

Then we run

cd/ios
pod install

[Desintegrator]

yeah! this fixes lib for RN 0.64 for me!