version 2.13.0

add Map library (MapView with OSM maps and items) and mapviewer util

libs/map/mapitemnongeogeometrybase.cpp

@@ -0,0 +1,21 @@
+#include "mapitemnongeogeometrybase.h"
+
+
+void MapItemNonGeoGeometryBase::setUnits(Units u) {
+	m_units = u;
+	updateParent();
+}
+
+
+void MapItemNonGeoGeometryBase::zoomChanged() {
+	px2m = scalePx2M(norm_pos);
+}
+
+
+double MapItemNonGeoGeometryBase::unitScale() const {
+	switch (m_units) {
+	case Meters: return px2m;
+	default: break;
+	}
+	return 1.;
+}