Add erlang:display

[inoas]

While there is io.debug, string.inspect in stdlib, in gleam_erlang there could be another debug function that is helpful when debugging underlaying erlang values such as this: gleam-lang/stdlib#332

I'd suggest to just add in gleam: erlang.debug (prints to stdout, returns value) and erlang.inspect (returns string)

Would you want me to do that?

[lpil]

Good idea. Yes please