Added pluralize/singularize functions based on an int count.

[ethauvin]

"person".pluralize(1)  # => "person"
"person".pluralize(2)  # => "people"

That was needed.

Additionally, you might want to look at Plural.kt. It might be a useful generic pattern.

Ultimately, I'd like to see the patterns, etc. included in resources instead of hard-coded. That will make it a lot easier for people to add/modify rules, and use the library with other languages. Have you looked at Quantity Strings?

Hope this helps,

E.

[cesarferreira]

Thanks for the PR :)
Don't you think ternaries would look sexier tho? :)

Thanks for the tips :) I'll work on that direction (extract the rules)