Add SPDX-FileCopyrightText for sole author files

galvani/__init__.py

@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: 2014-2019 Christopher Kerr <chris.kerr@mykolab.ch>
+
 from .BioLogic import MPRfile, MPTfile
 
 __all__ = ['MPRfile', 'MPTfile']

galvani/res2sqlite.py

@@ -1,5 +1,7 @@
 #!/usr/bin/python
 
+# SPDX-FileCopyrightText: 2013-2020 Christopher Kerr <chris.kerr@mykolab.ch>
+
 import subprocess as sp
 import sqlite3
 import re