StickerViewNativeComponent

Summary:
view config RCTStickerViewNativeComponent

had to get one view config in before I left London lol

Reviewed By: rickhanlonii

Differential Revision: D15825774

fbshipit-source-id: 846d9ee1d15f6ec64d88a1af7b72fd863ae10afc

Libraries/Types/CodegenTypes.js

@@ -28,4 +28,4 @@ export type Int32 = number;
 //  but that is currently not supported in the codegen since we require a default
 //
 // eslint-disable-next-line no-unused-vars
-export type WithDefault<Type: number | boolean | string, Value: Type> = Type;
+export type WithDefault<Type: number | boolean | string, Value: ?Type> = Type;