New upstream version 0.0.5

.github/workflows/ci.yml

.gitignore

.yardopts

CHANGES.md

Gemfile

README.md

Rakefile

example/animation.rb

example/ex_canvases.rb

example/ex_staircase_plot.rb

example/ex_stemplot.rb

example/issue32.rb

img/barplot.png

img/boxplot.png

img/densityplot.png

img/histogram.png

img/lineplot.png

img/scatterplot.png

lib/unicode_plot.rb

lib/unicode_plot/barplot.rb