Create SECURITY.md

Author: rickymoorhouse

SECURITY.md

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+# Security Policy
+
+## Supported Versions
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 1.x     | :white_check_mark: |
+| < 1.0   | :x:                |
+
+## Reporting a Vulnerability
+
+To report a security issue, please email with a description of the issue, the steps you took to create the issue, 
+affected versions, and if known, mitigations for the issue. This project follows a 90 day disclosure timeline.