Add === and !== ligatures

[astefanutti]

Would be great for JavaScript.

[treybrisbane]

+1

[carlosflorencio]

Also need this! Great font!

[djspiewak]

This would also be fantastic for Scala developers using Scalaz/Cats. At present, these operators render in a rather unsightly fashion:

[appsforartists]

FiraCode handles these nicely: == is two parallel lines (a wide equals). === is three parallel lines. !== is three parallel lines with a slash through them.

[artempyanykh]

This also would be great for Scala devs working with slick where === is quite ubiquitous.

[samjross]

is this project dead? Would love these features as well but without them, just gonna go back to dejavu

[astefanutti]

FWIW, Hack (and others) font with ligature can be found at https://github.com/vikky49/patchedFonts-Ligatures.