addMarkers() addLines() set wrong coordinates - Version 1.7

[rodion-sarakuz]

If init the map without declaring in options:
markers: [], lines: [],

that addMarkers() addLines() set wrong coordinates.

Version 1.7

[DiFuks]

@rodion-sarakuz As a workaround, I managed to pass the parameter markers: [] during map initialization. This is related to the following line of code:

jsvectormap/packages/jsvectormap/src/js/map.js

Lines 88 to 91 in 5f77186

	if (options.markers) {
	this._markersGroup = this.canvas.createGroup(MARKERS_GROUP_ID)
	this._markerLabelsGroup = this.canvas.createGroup(MARKERS_LABELS_GROUP_ID)
	}

"**