Alternative crate: `doxygen-bindgen`

[rich-ayr]

I've tried using this crate to process doxygen docs, unfortunately this implementation panics on error (can be solved through catch_unwind) and doesn't handle spaces between directions (attribute lists).
It tends to be a bit restrictive in general.

So I've decided to roll my own using the yap crate and a simpler design for parsing.

source: https://github.com/oberrich/doxygen-bindgen/blob/master/src/lib.rs
crate: https://crates.io/crates/doxygen-bindgen