feat: add tryItOutEnabled configuration (#6865)

* feat: add tryItOutEnabled configuration

allow users to set tryItOutEnabled: true to display
the "Try it out" section by default

tryItOutEnabled to take === "true" for the
query string value or === true if someone
implements query string type parsing in the query

src/core/index.js

@@ -43,6 +43,7 @@ export default function SwaggerUI(opts) {
     displayOperationId: false,
     displayRequestDuration: false,
     deepLinking: false,
+    tryItOutEnabled: false,
     requestInterceptor: (a => a),
     responseInterceptor: (a => a),
     showMutatedRequest: true,