Type definitions and tests for line-reader - #6786

Type definitions and tests for line-reader

  - Make DivOverlay / Tooltip interactive (DefinitelyTyped#7531, DefinitelyTyped#7532 by @johnd0e)
  - Add openOn, close, toggle functions to DivOverlay (DefinitelyTyped#6639 by @johnd0e)
  - Introduce DomEvent.off(el) to remove all listeners (DefinitelyTyped#7125 by @johnd0e)
  - Allow preventing round-off errors by passing false to Util.formatNum / toGeoJSON (DefinitelyTyped#7100 by @johnd0e)
  - Add autoPanOnFocus to Marker (DefinitelyTyped#8042 by @IvanSanchez)
  - Add referrerPolicy to TileLayer (DefinitelyTyped#7945 by @natevw)
  - Add playsInline to VideoOverlay (DefinitelyTyped#7928 by @Falke-Design)
  - Add getCenter to ImageOverlay (DefinitelyTyped#7848 by @Falke-Design)
  - Fire a tileabort event when a TileLayer load is cancelled (DefinitelyTyped#6786 by @dstndstn)
  - Add crossOrigin to Icon (DefinitelyTyped#7298 by @syedmuhammadabid)

…ds, as of version 1.8 by @someonewithpc

* Leaflet: Update definitions to include missing methods found in 1.8

A declaration was generated with `dts-gen` and compared with the existing
definition, merging them manually to add missing methods

* Leaflet: Explicitly define `Evented.listens` with the corresponding function type and fix linter errors

* Leaflet: Add tests for added methods

* Leaflet: Add missing Mixin export

* Allow L.geoJSON to accept geojson.GeoJsonObject[], fixing #60930

* Temporarily duplicate the implementation of Events and Evented, so tests pass

* Fix toGeoJson(precision?: number | false) argument for all overrides

* Add missing properties, as pointed out by DangerBotOSS

* Add a 'tileabort' event when a tile load is cancelled

See Leaflet/Leaflet#6786

* Make changes reported in Leaflet's Changelog

  - Make DivOverlay / Tooltip interactive (#7531, #7532 by @johnd0e)
  - Add openOn, close, toggle functions to DivOverlay (#6639 by @johnd0e)
  - Introduce DomEvent.off(el) to remove all listeners (#7125 by @johnd0e)
  - Allow preventing round-off errors by passing false to Util.formatNum / toGeoJSON (#7100 by @johnd0e)
  - Add autoPanOnFocus to Marker (#8042 by @IvanSanchez)
  - Add referrerPolicy to TileLayer (#7945 by @natevw)
  - Add playsInline to VideoOverlay (#7928 by @Falke-Design)
  - Add getCenter to ImageOverlay (#7848 by @Falke-Design)
  - Fire a tileabort event when a TileLayer load is cancelled (#6786 by @dstndstn)
  - Add crossOrigin to Icon (#7298 by @syedmuhammadabid)