Use color of entity even no corresponding layer is found

[apriljunge]

In .toPolyLines() the color of the entity is only parsed when a matching layer is found.
If theres no layer found, the color is set to black even when the entity has an color attribute. Is this intended?

dxf/src/toPolylines.js

Lines 14 to 25 in 9895f4f

	if (layerTable) {
	const colorNumber =
	'colorNumber' in entity ? entity.colorNumber : layerTable.colorNumber
	rgb = colors[colorNumber]
	if (rgb === undefined) {
	logger.warn('Color index', colorNumber, 'invalid, defaulting to black')
	rgb = [0, 0, 0]
	}
	} else {
	logger.warn('no layer table for layer:' + entity.layer)
	rgb = [0, 0, 0]
	}

[skymakerolof]

It seems strange that the color attribute of the entity is only parsed when a matching layer is found, and defaults to black otherwise, even if the entity has a specified color. I'm not entirely sure about the intended behavior here, but it does raise some questions. A pull request to address this would be welcome.

[skymakerolof]

#140 Released as 5.1.1