* fssystem: implement PartitionFileSystemMetaCore * fssystem: PartitionFileSystemMetaCore cleanup * fs: add IFile::DryWrite, update results * fssystem: implement PartitionFileSystemCore * fssystem: cleanup PartitionFileSystemCore * fssystem: implement Sha256PartitionFileSystem Co-authored-by: Michael Scire <SciresM@gmail.com>