Added
- Added [`Minichart component`](https://github.com/thedirtyfew/dash-leaflet/pull/116).
Changed
- The following components are now loaded async: `EditControl`, `GeoTIFFOverlay`, `LocateControl`, `MeasureControl`, `MarkerClusterGroup`. As a result, the main bundle size has been reduced to about half (< 500 kB).
- Update to Dash 2.0.
- Prop validation of `GeoJSON` component `hideout` prop relaxed.
- Prop validation of `Polygon` component `positions` prop relaxed.