Wire Editor to Flipper

Summary:
This diff implements the integration between a Litho Editor and Flipper. It does so by converting the Editor format to FlipperObject, and then converting it back from FlipperDynamic.

This conversion works for both `State` and `Prop`. We already provide default implementations for primitive + wrapped types and String, so the functionality should match the existing one.

Reviewed By: passy, Katalune

Differential Revision: D22455220

fbshipit-source-id: f7f633765f3d997ce6de09d2c1277019e72c0802

android/src/main/java/com/facebook/flipper/core/FlipperDynamic.java

@@ -18,6 +18,10 @@ public class FlipperDynamic {
     mObject = object;
   }
 
+  public Object raw() {
+    return mObject;
+  }
+
   public @Nullable String asString() {
     if (mObject == null) {
       return null;