Review LICENSE files for xtable based on feedback provided in [email protected]

[vinishjail97]

Search before asking

• [X] I had searched in the issues and found no similar issues.

Please describe the bug 🐞

TL;DR LICENSE file is in complete and needs changes to release xtable bundled jar.

https://lists.apache.org/thread/93nlgwwblc8lnofmrqsk4ojkmv56q6ft

Are you willing to submit PR?

• [ ] I am willing to submit a PR!
• [X] I am willing to submit a PR but need help getting started!

Code of Conduct

• [X] I agree to follow this project's Code of Conduct