This is a C# port of the tja2fumen python library made by vivaria.
This library was ported almost 1:1 to the original one, so it's not made with a great codebase due to the differences of Python and C#.
It's made as a library for it to be used by TekaTeka and not like a single program. If you want to convert your own tja files, please use the original python program