Showing accuracy and direction on the dot

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### This issue is for a: (mark with an `x`)
```
- [ ] bug report -> please search issues before submitting
- [x] feature request
- [ ] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)
```

How do I show the accuracy circle and compass direction (`heading` or device position) on the current location dot, like how navigation apps do it?