Bodymovin UI extension panel

1. Setup AE for debugging extensions (guide)
2. Install the CEF client you'll need for remote debugging
3. Install extension dependencies (npm i)
4. Install server dependencies (cd bundle/server && npm i)
5. Run npm run start-dev
6. Open the CEF client and navigate to https://localhost:8092

The extension window will now hot-reload and you can use the devtools in the CEF client.