Merge pull request #13 from Nauja/dev

Add fs_rsplit, fs_basename and fs_dirname

Merge pull request #12 from Nauja/dev

Fix MSVC order and compilation with VS

Merge pull request #11 from Nauja/dev

Add LIBFS_SHARED option

Merge pull request #8 from Nauja/dev

Update doc for now version

Update CI.yml

Update roadmap.rst

more doc and add size_t everywhere