add copyright header

datamodules.py

@@ -1,3 +1,23 @@
+
+# QRotaryTraining - A novel method for fully training all parameters of large
+# language models (llms) while using less device memory than traditional methods.
+# Copyright (C) 2024 Carl Philipp Klemm
+#
+# This file is part of QRotaryTraining.
+#
+# QRotaryTraining is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# QRotaryTraining is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with QRotaryTraining.  If not, see <http://www.gnu.org/licenses/>.
+
 import copy
 import torch
 import typing