model: tensorflow: dnnc: Hash hidden_layer to create model_dir

Fixes: #220

Author: aghinsa

model/tensorflow/dffml_model_tensorflow/dnnc.py

@@ -145,9 +145,8 @@ def _model_dir_path(self):
         """
         if self.parent.config.directory is None:
             return None
-        model = hashlib.sha384(
-            "".join(self.features).encode("utf-8")
-        ).hexdigest()
+        _to_hash = self.features + list(map(str, self.parent.config.hidden))
+        model = hashlib.sha384("".join(_to_hash).encode("utf-8")).hexdigest()
         if not os.path.isdir(self.parent.config.directory):
             raise NotADirectoryError(
                 "%s is not a directory" % (self.parent.config.directory)