Git tree grid

[nrbgt]

Goal

• figure out a data structure (might be text) for the output of

$> git log --all --decorate --oneline --graph

* 386ca15 (HEAD -> add-git-tree-grid, origin/add-git-tree-grid) resolve locks
| * fecc708 (origin/add-qfd-grid-example, add-qfd-grid-example) resolve
| * b083871 relock
|/  
* c0064c5 (tag: v0.5.0, upstream/master, master, fix-doit-lab) Check Lab 3.0.5, Preflight release (#55)
* 9645f1c Use myst-nb for docs (#54)
| * 0e0bb02 (upstream/gh-pages) Delete CNAME
| * 3a8fe63 wxyz 0.5.0 c0064c5
| * b3b2360 initial commit
| * a4c740e (origin/use-myst, use-myst) more work on myst output
| * 21d0f49 some tweaks for docs
| * b264e59 start trying myst-nb
|/  
* 14e8111 Docs and dependencies for wxyz_notebooks, third-party packages for demo/testing (#51)
| * dde7405 (origin/fix-docs-and-deps, fix-docs-and-deps) update spelling
| * ecbffef fix integrity (don't check for npm package names)
| * 432ac9c some docs for wxyz_notebook, add extras
| * a4f6ace re-lock envs with new demo deps
| * 30c9de7 update readme, tpot deps
|/  
* e0c2739 (fix-editor-undo) JupyterLab 3 Support (#50)
* 5bda783 (tag: v0.4.2) Decomission azure, improve github actions (#49)

• add a grid renderer that can draw the output
  • initially as monospace text
  • eventually pretty lines and symbols on canvas
  • some cute things for heads, tags, branches
  • maybe render LabIcons down to canvas
• include in a demo
• test it

Design ideas

• it should be possible to use the absolute width of the ascii art to make a fairly good, consistent line drawing where the | would line up with its parent