[GITHUB ACTION] Refactor for license and actions (#148)

* Delete datafusion main publication

* Adding licence information, refactoring prunibility issues

* Update SYNNADA-CONTRIBUTIONS.txt

* Update rat_exclude_files.txt

SYNNADA-NOTICE.txt

@@ -0,0 +1,13 @@
+As of 21 July 2023, Synnada, Inc. makes two types of contributions to the Apache Arrow/Datafusion project:
+
+1. Contributions Synnada, Inc. and its employees donate to the Apache Software
+Foundation, which merge with Apache Software Foundation's Arrow/Datafusion
+repository.
+2. Contributions and extensions Synnada Inc. retains the copyright to, which
+stay in Synnada Inc.'s fork repository. Synnada Inc. currently does not offer
+any licenses for these contributions and default copyright laws apply.
+See the SYNNADA-CONTRIBUTIONS file for a list of these contributions.
+
+Synnada, Inc. extensions are separate from the Apache Software Foundation
+copyrighted codebase. Synnada, Inc. claims no copyright or control over the
+Apache Software Foundation copyrighted portions of this software.

SYNNADA-README.md

@@ -0,0 +1,16 @@
+### Synnada, Inc. Apache Arrow/Datafusion Fork Policy
+
+**Synnada, Inc.** will continue to submit general bug fixes, patches, and other improvements to the **Apache Arrow/Datafusion** project under the Apache 2.0 license. We aim to remain an active contributor to further the growth and maintenance of the core **Apache Arrow/Datafusion** codebase.
+
+However, certain new features developed by **Synnada, Inc.** will be released under our own copyright through this soft fork repository. While we build upon and extend the **Apache Arrow/Datafusion** codebase, new features represent intellectual property that we wish to license separately and maintain copyright over.
+
+This approach allows us to operate at dual levels:
+
+1. Community contributors - Submitting PRs to support the growth and health of the **Apache Arrow/Datafusion** ecosystem through the main project.
+2. Independent open source developers - Building proprietary extensions and features on top of **Apache Arrow/Datafusion** that we release under our own terms to customers and the broader OSS community.
+
+Synnada, Inc. believes this model of cooperative development and extension-building enables a thriving ecosystem around **Apache Arrow/Datafusion**. We can continue to support the project's core mission while also driving innovative new features under terms compatible with our business.
+
+We will do our best to keep the **Synnada, Inc.** fork repository interoperable with upstream **Apache Arrow/Datafusion.** Furthermore, we are exploring ways to offer our extensions through transparent licensing in the future so that others can build upon our fork as well. This way, we aim to build a long lasting collaborative partnership between the **Apache Arrow/Datafusion** community and Synnada, Inc.
+
+Please let us know if you have any other questions or require any clarification on our approach to contributing to the **Apache Arrow/Datafusion** project while building proprietary extensions. We are committed to a cohesive partnership that drives open data processing technologies forward.

dev/release/rat_exclude_files.txt

@@ -136,4 +136,7 @@ datafusion/proto/src/generated/prost.rs
 .github/ISSUE_TEMPLATE/feature_request.yml
 .github/workflows/docs.yaml
 **/node_modules/*
-datafusion/wasmtest/pkg/*
+datafusion/wasmtest/pkg/*
+SYNNADA-CONTRIBUTIONS.txt
+SYNNADA-README.md
+SYNNADA-NOTICE.txt