function strokeRect(batch, x, y, width, height, color) {
  if (!color) color = [255, 255, 255, 1];
  this.insertRectangleAt(
    batch,
    x | 0, y | 0,
    width | 0, height | 0,
    color, false
  );
}
Inserts stroked rectangle at given position
@param {Batch} batch
@param {Number} x
@param {Number} y
@param {Number} width
@param {Number} height
@param {Array} color