[epic] Mapbox and custom svg 0.4.8

[kfarr]

for merging all these things together and testing:

• mapbox
• user material
• custom svg
• new trolley - for later

Steps to test this:

• get 0.4.8 dist ready from this repo; load that dist into editor on its 0.4.9 PR
• first run locally with dev credentials for sanity check
• create mapbox scene - first make "test code" like svg example and publish these snippets to blog
• add svg, test code here: extrude svg to curb geometry #473 (comment)
• add 1 street
• save
• reload
• add bricks texture
• save
• reload
• wow
• writeup error around mapbox saving Use json-utils functions from global STREET.utils 0.4.9 3dstreet-editor#387 (comment)
• release this 3dstreet core version 0.4.8
• try launching this on a dev server for deeper work

[netlify]

✅ Deploy Preview for 3dstreet-core-builds ready!

Name	Link
🔨 Latest commit	e2bd933
🔍 Latest deploy log	https://app.netlify.com/sites/3dstreet-core-builds/deploys/65d9798e3f139c0008fdb9aa
😎 Deploy Preview	https://deploy-preview-478--3dstreet-core-builds.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.