Make flipper-server NPX-able

Summary: Make sure flipper-server is bundled in such a way that it is self-contained NPX-able. Also added some checks to make sure that dev dependencies don't accidentallly end up in in Flipper buidls

Reviewed By: nikoant

Differential Revision: D33190254

fbshipit-source-id: 443162e537d8ca9f956acac2d7bd52cbf0c92172

desktop/flipper-server-core/src/utils/environmentInfo.tsx

@@ -7,6 +7,7 @@
  * @format
  */
 
+import process from 'process';
 import os from 'os';
 import fs from 'fs-extra';
 import path from 'path';