Hash directory also hashes untracked files

[spoorcc]

When checking for local changes, untracked files are also hashed.

Dfetch should only hash files given by git ls-tree -r --name-only HEAD <local-path> when checking for local changes in VCS._are_there_local_changes

[spoorcc]

Or should Dfetch alternativly suggest that there are untracked files?

[spoorcc]

In recent changes for patching, untracked files are now retrieved from the vcs, also ignored files. Generalize these file lists and then the ignored files can be added to the skiplist in:

 return bool(on_disk_hash) and on_disk_hash != hash_directory(
            self.local_path, skiplist=[self.__metadata.FILENAME]
        )

If a user has ignored files and manually does a dfetch update that overwrites them, this is no problem. Untracked files shouldn't be ignored.