Migrate packageMetadata

Summary: _typescript_

Reviewed By: danielbuechele

Differential Revision: D16782045

fbshipit-source-id: cfbabc036eb707f76a375f451ccc831b25c6d462

types/nodejs.tsx

@@ -7,6 +7,7 @@
 
 declare module NodeJS {
   interface Global {
+    __REVISION__: string | undefined;
     electronRequire: (name: string) => void;
     window: Window | undefined;
   }