Converting and splitting large, tagged lst files is very slow #109
Description
Large lst files and their convertion to crd is too slow when many shots are present, i.e., when the UO and UOx peaks are measured along U peaks. This is a problem when blinking.
Underlying problem:
Conversion is implemented in python and needs a lot of string operations, which cannot be jit compiled.
Anticipated solution:
Turn rimseval into a mixed python/rust package using Maturin and implement the lst2crd class in Rust. File conversion and tagged-spectra conversion can then be implemented in Rust for speedup.