Merge pull request 'Add LICENSE' (#1) from release/add-license into main

Reviewed-on: #1

LICENSE

@@ -0,0 +1,30 @@
+All licenses in this repository are copyrighted by their respective authors.
+
+Everything else is released under CC0.
+
+------------------------------------------------------------------------------
+
+No Copyright
+
+The person who associated a work with this deed has dedicated the work to the
+public domain by waiving all of his or her rights to the work worldwide under
+copyright law, including all related and neighboring rights,
+to the extent allowed by law.
+
+You can copy, modify, distribute and perform the work, even for commercial
+purposes, all without asking permission. See Other Information below.
+
+Other Information:
+
+    * In no way are the patent or trademark rights of any person affected
+    by CC0, nor are the rights that other persons may have in the work or in
+    how the work is used, such as publicity or privacy rights.
+
+    * Unless expressly stated otherwise, the person who associated a work with
+    this deed makes no warranties about the work, and disclaims liability for
+    all uses of the work, to the fullest extent permitted by applicable law.
+
+    * When using or citing the work, you should not imply endorsement
+    by the author or the affirmer.
+
+http://creativecommons.org/publicdomain/zero/1.0/legalcode