New features
- Added the ability to visualize not-binary matrices in color using `viz_spy()` (11).
- In support of this new feature: added the `force_binary`, `nbcmap`, and `draw_order` parameters to `viz_spy()`.
- Added `verbose` parameters to `viz_spy()` and `viz_imshow()`.
Documentation
- Various updates to the README, tutorial, and benchmarking notebooks.
- Fixed the docstring of `wotplot._make._fill_match_cells()`.
- Small improvements to the docstring of `wotplot.viz_spy()`.
Maintenance
- Added more tests (mostly focusing on checking the visualization functions' `verbose` logging).
- Various small code improvements (abstracting repeated bits of code, etc.)
Fancy screenshot of a large multicolor dotplot matrix
![image](https://github.com/fedarko/wotplot/assets/4177727/b520f3f0-f2c1-4a47-8282-632d5383438a)