fmtparse

Parse format!-like strings. This is mostly useful if you want to write a proc
macro and want to implement format!-like functionality without relying on the
original macro.
See https://github.com/CombiRWTH/graph-visualiser-website/blob/6dcce28567d08bb73d4b2bd7533bf246291f3a76/rust/algorithm/impl/src/lib.rs#L203-L223 for an example usage of this crate.