Ag/generate examples

[Notgnoshi]

Closes #169.

• [x] Generate examples stringing together multiple tools
  • [x] Generate random Lindenmayer examples
  • [x] Generate asemic writing examples
• [ ] Generate examples for each tool
  • [ ] wkt2svg
  • [ ] render.py
  • [ ] bundle
  • [ ] pack
  • [ ] format.py
  • [x] random-production-rules.py
  • [x] parse-production-rules.py
  • [x] interpret-lstring.py
  • [x] random-lsystem.sh
  • [ ] project.py
  • [ ] geom2graph
  • [ ] smooth
  • [ ] snap
  • [ ] transform
  • [x] point-cloud
  • [x] grid
  • [x] bitwise
  • [x] dla
  • [x] streamline
  • [x] traverse
  • [x] triangulate
  • [x] urquhart
• [x] Table of contents
• [ ] Remove stale example data
• [ ] Remove stale example generation scripts
• [ ] Swap out README.md.out with README.md
• [ ] Consider running generation in parallel?