Add SECURITY.md referencing eve repo

Signed-off-by: eriknordmark <[email protected]>

SECURITY.md

@@ -0,0 +1,17 @@
+# Security Policy
+
+## Reporting a Vulnerability
+
+EVE community takes security seriously. If you discover a security issue,
+please bring it to our attention right away!
+
+Please DO NOT file a public issue, instead send your report privately to
+[email protected].
+
+## Security Overview
+
+The main EVE repo's
+[CONTRIBUTING.md](https://github.com/lf-edge/eve/blob/master/CONTRIBUTING.md)
+and
+[SECURITY.md](https://github.com/lf-edge/eve/blob/master/docs/SECURITY.md) has
+additional information about contributions and security approaches.