Pass supportsMethod as an argument to the exportPersistedState

Summary:
This diff adds supportsMethod as a closure which can be used to verify a method is implemented on the client side.

It will be used in the next diff

Reviewed By: jknoxville

Differential Revision: D21176415

fbshipit-source-id: fe16d966c58d36558034ce4ade8f58f8031aab18

desktop/app/src/utils/exportData.tsx

@@ -22,6 +22,7 @@ import {
   FlipperDevicePlugin,
   FlipperPlugin,
   callClient,
+  supportsMethod,
   FlipperBasePlugin,
 } from '../plugin';
 import {default as BaseDevice} from '../devices/BaseDevice';
@@ -472,6 +473,7 @@ export async function fetchMetadata(
             state,
             idler,
             statusUpdate,
+            supportsMethod(client, pluginId),
           ),
           `Timed out while collecting data for ${pluginName}`,
         );