React Native 0.61.5 Support Needed

[maulikakapure]

[!] use_native_modules! skipped the react-native dependency 'react-native-signview'. No podspec file was found. - Check to see if there is an updated version that contains the necessary podspec file - Contact the library maintainers or send them a PR to add a podspec. The react-native-webview podspec is a good example of a package.json driven podspec. See https://github.com/react-native-community/react-native-webview/blob/master/react-native-webview.podspec