Reduces compiler-wasm binary file size

[malbarbo]

Add the compiler-wasm feature reduce-bin-size which, when enabled, reduces the generated wasm file from 3.7 MB to 2.2 MB.

We achieved this by:

• Adding the compiler-core feature disable-erlang, which disables erlang code generation
• Replacing the use of regular expressions with iterator code
• Adding the compiler-core feature disable-hide-internal, which disables hiding of internal methods, which requires the use of the globset crate, which in turn requires the use of the regex crate

Nothing changes by default, but when the compiler-wasm crate is built with the reduce-bin-size feature enabled, the compiler do it's magic and no code from the erlang backend and the globset and regex crates appears in the wasm file.

[malbarbo]

I'm incorporating the gleam compiler into a project, and the binary size is import.

I made this PR in case it's an interesting aspect for the gleam project. But if it's not desirable, no problem.

[lpil]

Hello! Thank you for this, but this introduces a substantial maintenance overhead which I'm not in a position to support. Gleam is a community project and we about about 0.8 developers worth of money, so we have to be as efficient as possible with our time.