Introduce isPluginAvailable and selectPlugin

Summary:
Introduced API to replace the deprecated `selectPlugin` in Sandy.

The API can be used to navigate from `device plugin -> device plugin`, or` client plugin -> device / client plugin`

Introduced `isPluginAvailable` as well, so that the user interaction an be fine tuned in case the plugin is not disabled.

Reviewed By: jknoxville

Differential Revision: D25422370

fbshipit-source-id: c6c603f1c68e6291280b3d0883e474448754ded1

desktop/flipper-plugin/src/plugin/FlipperLib.tsx

@@ -8,7 +8,9 @@
  */
 
 import {Logger} from '../utils/Logger';
+import {RealFlipperDevice} from './DevicePlugin';
 import {NormalizedMenuEntry} from './MenuEntry';
+import {RealFlipperClient} from './Plugin';
 
 /**
  * This interface exposes all global methods for which an implementation will be provided by Flipper itself
@@ -18,4 +20,15 @@ export interface FlipperLib {
   enableMenuEntries(menuEntries: NormalizedMenuEntry[]): void;
   createPaste(input: string): Promise<string | undefined>;
   GK(gatekeeper: string): boolean;
+  isPluginAvailable(
+    device: RealFlipperDevice,
+    client: RealFlipperClient | null,
+    pluginId: string,
+  ): boolean;
+  selectPlugin(
+    device: RealFlipperDevice,
+    client: RealFlipperClient | null,
+    pluginId: string,
+    deeplink: unknown,
+  ): void;
 }