add colors json on setup.py

Author: ThomasBouche

setup.py

@@ -92,7 +92,8 @@
     data_files=[('data', ['shapash/data/house_prices_dataset.csv']),
                 ('data', ['shapash/data/house_prices_labels.json']),
                 ('data', ['shapash/data/titanicdata.csv']),
-                ('data', ['shapash/data/titaniclabels.json'])],
+                ('data', ['shapash/data/titaniclabels.json']),
+                ('style', ['shapash/style/colors.json'])],
     include_package_data=True,
     setup_requires=setup_requirements,
     test_suite='tests',