Bump React to 17.0.1 and React Native to 0.64.3

[andlum]

Summary

Upgrading some dependencies to keep the package up to date:

• Bump React to 17.0.1 in sdk and example app
• Bump React Native to 0.64.3 (latest version supported by Expo) in SDK and example app
• Rename blacklist to exclusionList in metro.config.js: https://github.com/callstack/react-native-builder-bob/pull/168
• Rename blacklist to blocklist in metro.config.js: https://github.com/facebook/metro/commit/94c0b541b4bfa17aee4efa0f1969565522ce830d
• Bump devDependencies with