Initial fork of spark into heatmap.sh.
Initial idea/commit.

Conflicts:
	README.md
Initial ░▒▓█ heatmap.sh. Add docs and TODO direction.

Conflicts:
	heatmap.sh
Add attribution and direction with data input.
Refactor into heatmap usage and howto process.
Heatmap refactor to split width based on input. Cleanup tests.