Script for resolving plugin directory by its package name

Summary:
Changed "build-plugin" script to allow triggering release by plugin name (required to enable triggering releases by button in Marketplace):
1) Added new script to resolve plugin dir by name
2) Allow passing either plugin dir or name to "build-plugin" script

Reviewed By: passy

Differential Revision: D22354643

fbshipit-source-id: b7aca57acefc81ca0b6d9c7f359f63d8f0599e39

desktop/scripts/resolve-plugin-dir.ts

@@ -0,0 +1,16 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import {resolvePluginDir} from './workspaces';
+
+(async function () {
+  const pluginName = process.argv[2];
+  const pluginDir = await resolvePluginDir(pluginName);
+  console.log(pluginDir);
+})();