Merge pull request #608 from splitio/prepare-release

added notice file

Author: chillaq

NOTICE.txt

@@ -0,0 +1,5 @@
+Harness Feature Management JavaScript SDK Copyright 2024-2026 Harness Inc.
+
+This product includes software developed at Harness Inc. (https://harness.io/).
+
+This product includes software originally developed by Split Software, Inc. (https://www.split.io/). Copyright 2016-2024 Split Software, Inc.