Revive older benchmarks

[nponeccop]

Older benches (separate low priority issue):

• [x] dom-first-rendering
  • [x] revive
  • [x] use as an SVG.transform example for #70
• [ ] dom
  • [x] revive
  • [x] use as an example for #70
  • [ ] convert to newest path DOM API if necessary
• [ ] Revive d3 to be the simplest possible version of SVG path pan (to be a reference for future WebGL/Canvas proof of concept implementers):
  • [ ] Just one path element
  • [ ] CSS for SVG size, stroke width and color
  • [ ] Our old double sine dataset (common.f)
  • [ ] sin() panning on redraw, no zoom
  • [ ] measureOnce()
• [ ] demo2-without-grid
  • [ ] update to match demo2 fixes from path-draw-transform-d3
  • [ ] pan chart using sin() on every redraw
  • [ ] autoscale using the SegmentTree index

[nponeccop]

Added demo1