7.2.0

• Entry paths are normalized like the engine does it: \ is a separator, ASCII letters are lowercased, and ./.. are resolved. Invalid names are rejected.
• Package.Open, OpenEntryStream (read nested VPKs in place) and Verify (all checks in one call, with progress and cancellation).
• RemoveDirectory and RenameDirectory.
• Write back over the read file, including a _dir.vpk, or repack into new chunk files with Write(path, repack: true).
• Path helpers (TryParseEntryPath, NormalizeDirectoryPath, PathComparer) and chunk file helpers (GetChunkFilePath, TryParseChunkFilePath, OpenArchiveStream).
• Writing refuses to overwrite the package's own chunk files.
• FindEntry no longer allocates, the library no longer uses LINQ, and writing and verifying allocate less.