Allow forEachFeatureAtPixel callback to break out of loop
Break out of forEachFeatureAtPixel as soon as hit detected in icon example
Break out of forEachFeatureAtPixel as soon as hit detected in synthetic-points example
Break out of forEachFeatureAtPixel as soon as hit detected in vector-layer example
Pass layer to forEachFeatureAtPixel callback
Add layer to forEachFeatureAtPixel callbacks in examples
Add optional layerFunction to ol.Map#forEachFeatureAtPixel