Add xyz to origin in NGL.js

adding_xyz_in_NGL.js

// In NGL it may be handy to show an XYZ system axes / caltrop / cube edge
// the following is called via `addAxis(stage)`

const addAxis = (stage) => {
  let shape = new NGL.Shape("shape", { dashedCylinder: true })
shape.addArrow([ 0, 0, 0 ], [ 10, 0, 0 ], [ 1, 0, 0 ], 1.0);
shape.addText([ 12, 0, 0 ], [ 1, 0, 0 ], 2.5, "x");
shape.addArrow([ 0, 0, 0 ], [ 0, 10, 0 ], [ 0, 1, 0 ], 1.0);
shape.addText([ 0, 12, 0 ], [ 0, 1, 0 ], 2.5, "y");
shape.addArrow([ 0, 0, 0 ], [ 0, 0, 10 ], [ 0, 0, 1 ], 1.0);
 shape.addText([ 0, 0, 12 ], [ 0, 0, 1 ], 2.5, "z");
var shapeComp = stage.addComponentFromObject(shape)
shapeComp.addRepresentation("buffer");
  shapeComp.autoView()
};