[native] Add dependency to generate QR codes on native

Summary:
With React Native, it seems like the most popular QR generation library is react-native-qrcode-svg. It's not actively contributed on, but it's a pretty standardized implementation so that makes sense. Added benefits are:

• Follows semver
• Uses GitHub releases
• A fair amount of customization options through props
• MIT license

ENG-4610

Depends on D8821

Test Plan: Can successfully import the QRCode component on native

Reviewers: atul, ginsu, tomek, varun, ashoat

Reviewed By: varun, ashoat

Differential Revision: https://phab.comm.dev/D8836