Allow direct references of doctor and pkg from the main bundle

Summary: This diff allows direct referencing pkg and doctor packages from the main bundle so they can be changed and used in the main app without publishing to npm

Reviewed By: mweststrate

Differential Revision: D20390416

fbshipit-source-id: af625a8b7cead4481743a88aec198493d363ce76

desktop/package.json

@@ -9,6 +9,7 @@
   "icon": "icon.png",
   "category": "facebook-intern",
   "privileged": true,
+  "license": "MIT",
   "build": {
     "appId": "flipper",
     "productName": "Flipper",
@@ -77,7 +78,9 @@
       "<rootDir>/static/globalTestSetup.js"
     ],
     "moduleNameMapper": {
-      "^flipper$": "<rootDir>/src/index.tsx"
+      "^flipper$": "<rootDir>/src",
+      "^flipper-doctor$": "<rootDir>/doctor/src",
+      "^flipper-pkg$": "<rootDir>/pkg/src"
     },
     "clearMocks": true
   },