feat(issue): Add SECURITY.md (#5363)

Author: forfreeday

SECURITY.md

@@ -0,0 +1,7 @@
+## Supported Versions
+Please see [Releases](https://github.com/tronprotocol/java-tron/releases). We recommend using the [most recently released version](https://github.com/tronprotocol/java-tron/releases/latest).
+
+## Reporting a Vulnerability
+**Please do not file a public ticket** mentioning the vulnerability.
+To find out how to report a vulnerability in TRON, visit [https://hackerone.com/tron_dao](https://hackerone.com/tron_dao?type=team) or email [bounty@tron.network](mailto:bounty@tron.network).  
+Please read the [disclosure policy](https://www.hackerone.com/disclosure-guidelines) for more information about publicly disclosed security vulnerabilities.