Experimental bindings for generating Bokeh Graphs in Haskell. Project originally for Zurihac 2018

Roadmap

1. Safe helper functions for inserting lines, possibly monoidal

2. More models, particularly glyphs

3. More helper functions for those models

4. Better file generation, plot composition

5. Performace/Space efficiency optimizations, type-safety improvements.

6. As a subproject of the above, implementing the Python implementations of DataSource and DataSpec in a typesafe manner.