Releases 2.22.0

BREAKING CHANGES

• style: Style#getTextAnchorPositionInCSS has been renamed to
  Style#getTextAnchorPosition.
• Feature: Feature#geometry is no longer available, use Feature#geometries instead.

New Features

• label: add a first implementation of Labels (1d05289d)
• renderer: add a renderer for Labels (b8cded01)

Refactors

• core: add Cache Class and instance one cache by Layer. (94a63d7b)
• style: get anchor position values instead of CSS (#1396) (8c456d73)

Bug Fixes

• Cache: wrong key handling when the keys count is inferior at 3. (8bafa130)
• style: add onload handler for symbol icon (0bf3a692)
• source: set the Style.minzoom correctly in VectorTilesSource (#1395) (f8d9de78)
• planar: use correct mouse position in PlanarControls (347653ce)
• sort features by order in VectorTileParser (d0392c2c)

Examples

• core: rename Feature#geometry to geometries (be61d15e)
• enable labels in Vector Tiles examples (a9bc6f3e)
• change the raster GPX example to support labels (b6448b8b)

Chores

• rename some features variables to collection to avoid confusion (0d400730)
• fix lint in eslintrc.js (32de0889)
• update packages. (8529e995)

Tests

• unit: add onload property to DOMElement (47241b25)