refactor(oas31): concentrate OpenAPI 3.1.0 code to separate plugin (#8475)

Refs #8474

src/core/plugins/oas31/index.js

@@ -0,0 +1,37 @@
+/**
+ * @prettier
+ */
+import Webhooks from "./components/webhooks"
+import License from "./components/license"
+import Info from "./components/info"
+import LicenseWrapper from "./wrap-components/license"
+import InfoWrapper from "./wrap-components/info"
+import { isOAS31, webhooks } from "./spec-extensions/selectors"
+import { isOAS3 } from "./spec-extensions/wrap-selectors"
+
+const OAS31Plugin = () => {
+  return {
+    components: {
+      Webhooks,
+      OAS31Info: Info,
+      OAS31License: License,
+    },
+    wrapComponents: {
+      License: LicenseWrapper,
+      info: InfoWrapper,
+    },
+    statePlugins: {
+      spec: {
+        selectors: {
+          isOAS31,
+          webhooks,
+        },
+        wrapSelectors: {
+          isOAS3,
+        },
+      },
+    },
+  }
+}
+
+export default OAS31Plugin