Resolve "Create the Geometry, Quadkey, RelationID and Floorspace rules"

Closes #4 (closed)

Additionally remving pylint from the linters to avoid error messages regarding missing libraries as this repository is not a regular package.

\approve @tara @ds

building/02_process/quadkey/quadkey.py

+class QuadkeyRule:
+    def __call__(self, longitude, latitude, *args, **kwargs):
+        """
+        Determine the Quadkey of the tile in which the building centroid is located given its
+        longitude and latitude.
+
+        Args:
+            longitude:
+                Longitude of the building centroid
+            latitude:
+                Latitude of the building centroid
+
+        Returns:
+            A dictionary with the zoom-level 18 Quadkey.
+        """
+
+        import mercantile
+
+        if longitude is None or latitude is None:
+            quadkey = None
+        else:
+            quadkey = mercantile.quadkey(mercantile.tile(longitude, latitude, 18))
+        return {"quadkey": quadkey}