Add extracted source directory and README navigation

extracted-source/node_modules/@azure/identity/dist/esm/plugins/consumer.js

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+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+import { msalNodeFlowCacheControl, msalNodeFlowNativeBrokerControl, } from "../msal/nodeFlows/msalPlugins.js";
+import { vsCodeCredentialControl } from "../credentials/visualStudioCodeCredential.js";
+/**
+ * The context passed to an Identity plugin. This contains objects that
+ * plugins can use to set backend implementations.
+ * @internal
+ */
+const pluginContext = {
+    cachePluginControl: msalNodeFlowCacheControl,
+    nativeBrokerPluginControl: msalNodeFlowNativeBrokerControl,
+    vsCodeCredentialControl: vsCodeCredentialControl,
+};
+/**
+ * Extend Azure Identity with additional functionality. Pass a plugin from
+ * a plugin package, such as:
+ *
+ * - `@azure/identity-cache-persistence`: provides persistent token caching
+ * - `@azure/identity-vscode`: provides the dependencies of
+ *   `VisualStudioCodeCredential` and enables it
+ *
+ * Example:
+ *
+ * ```ts snippet:consumer_example
+ * import { useIdentityPlugin, DeviceCodeCredential } from "@azure/identity";
+ *
+ * useIdentityPlugin(cachePersistencePlugin);
+ * // The plugin has the capability to extend `DeviceCodeCredential` and to
+ * // add middleware to the underlying credentials, such as persistence.
+ * const credential = new DeviceCodeCredential({
+ *   tokenCachePersistenceOptions: {
+ *     enabled: true,
+ *   },
+ * });
+ * ```
+ *
+ * @param plugin - the plugin to register
+ */
+export function useIdentityPlugin(plugin) {
+    plugin(pluginContext);
+}
+//# sourceMappingURL=consumer.js.map