setup.py installs subpackages and needed data files.

setup.py

@@ -2,7 +2,7 @@
 This is a setup script for those that are familiar with setuptooll. You can
 also just setup the paths and necessary dependencies in any other way you wish.
 """
-from setuptools import setup
+from setuptools import setup, find_packages
 
 
 #===============================================================================
@@ -13,7 +13,11 @@ def main():
         version="0.1",
         description="Tools for NOMAD parser development",
         package_dir={'': 'common/python'},
-        packages=["nomadcore"],
+        packages=["nomadcore", "nomadcore.unit_conversion", "nomadscripts"],
+        include_package_data=True,
+        package_data={
+            'nomadcore.unit_conversion': ['*.txt'],
+        },
         install_requires=[
             'pint',
             'numpy',