Add OAS3 indicator

src/core/plugins/oas3/wrap-components/version-stamp.jsx

@@ -0,0 +1,13 @@
+import React from "react"
+import { OAS3ComponentWrapFactory } from "../helpers"
+
+export default OAS3ComponentWrapFactory((props) => {
+  const { Ori } = props
+
+  return <span>
+    <Ori {...props} />
+    <small style={{ backgroundColor: "#89bf04" }}>
+      <pre className="version">OAS3</pre>
+    </small>
+  </span>
+})