Create DATA-LICENSE

Author: ipanalytics

DATA-LICENSE

@@ -0,0 +1,14 @@
+CC0 1.0 Universal
+
+The datasets, generated outputs, snapshots, CSV/JSON exports,
+and other published data artifacts in this repository are released
+under CC0 1.0 Universal.
+
+To the extent possible under law, the authors have waived all copyright
+and related or neighboring rights to these data artifacts.
+
+You can copy, modify, distribute, and use the data for any purpose,
+including commercial use, without asking permission.
+
+Full text:
+https://creativecommons.org/publicdomain/zero/1.0/