Fix TmpDir and Location

TmpDir: Clean up before and after, not just after
Location: Resolve path so that parent check works properly

PFERD/tmp_dir.py

@@ -18,6 +18,7 @@ class TmpDir(Location):
         """Create a new temporary folder for the given path."""
         super().__init__(path)
         self._counter = 0
+        self.cleanup()
         self.path.mkdir(parents=True, exist_ok=True)
 
     def __str__(self) -> str:

PFERD/utils.py

@@ -88,7 +88,7 @@ class Location:
     """
 
     def __init__(self, path: Path):
-        self._path = path
+        self._path = path.resolve()
 
     @property
     def path(self) -> Path: