code: function pathToLines(path) {
      var lines = [];
      var curr = null;
  
      path.forEach(function(cmd) {
          if(cmd[0] == PATH_COMMAND.MOVE) {
              curr = cmd[1];
          }
          if(cmd[0] == PATH_COMMAND.LINE) {
              var pt = cmd[1];
              lines.push(new Line(curr, pt));
              curr = pt;
          }
          if(cmd[0] == PATH_COMMAND.QUADRATIC_CURVE) {
              var pts = [curr, cmd[1], cmd[2]];
              for(var t=0; t<1; t+=0.1) {
                  var pt = calcQuadraticAtT(pts,t);
                  lines.push(new Line(curr, pt));
                  curr = pt;
              }
          }
          if(cmd[0] === PATH_COMMAND.BEZIER_CURVE) {
              var pts = [curr, cmd[1], cmd[2], cmd[3]];
              bezierToLines(pts,10).forEach(pt => {
                  lines.push(new Line(curr,pt))
                  curr = pt
              })
          }
      });
      return lines;
  }
docs: Convert a path of points to an array of lines
  
  @param {Array} path List of sub-paths
  
  @returns {Array<Line>}