Add Gleam

[jinyus]

This very is very slow (takes 7s to process 1 post).

It's very hard to optimize because there're no mutable data structures in the language.

There're also no normal loops or if statements.

[lpil]

Hi there! I'd recommend copying the Erlang one as algorithm used is perfectly suited to Gleam. https://github.com/jinyus/related_post_gen/blob/main/erlang/src/related_erl.erl

The algorithm here is one that is intended for mutable imperative languages so it will be catastrophically slow in Gleam.

[jinyus]

@lpil man that erlang syntax is giving me an aneurysm, will try though

[cyrusmsk]

Gleam is now 1.0

[grigio]

+1 for Gleam