RCaucTile 1.0.4
- small fix in `tile_colors`
- change the boundary about black/white decision
- update the `ec_languages` dataset with the Southern Akhvakh data on size of the consonant inventory

RCaucTile 1.0.3
- add `tile_colors` argument

RCaucTile 1.0.1
- small update after `ggplot2` 4.0.0

RCaucTile 1.0.0
- initial release
