Add bundled examples for Angular Material and Vue Vanilla

[lucas-koehler]

• Add rollup config to bundle the angular material example
• Add rollup config to bundle the vue 3 vanilla example
• Add to examples app

Notes:

• Some examples crash the angular example app when selected. However, this is not an issue of the bundled app but also happens in the existing dev example and is tracked as a separate issue: Angular object renderer crashes example app for some examples containing references #2073
• Only added example app for vue 3 because the vue 2 dev app currently does not work: Vue2 Vanilla dev app does not work #2075

Part of #1706

[netlify]

✅ Deploy Preview for jsonforms-examples ready!

Name	Link
🔨 Latest commit	acefc00
🔍 Latest deploy log	https://app.netlify.com/sites/jsonforms-examples/deploys/63beca3c364398000861631b
😎 Deploy Preview	https://deploy-preview-2074--jsonforms-examples.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

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[coveralls]

Coverage: 83.193%. Remained the same when pulling acefc00 on lk/gh-1706/angular-example into 36e3732 on master.

[lucas-koehler]

@sdirix I'm a bit confused why the deploy preview link directly links into the angular-material example. So maybe have a look if something unexpected happens here.

[sdirix]

Works for me!