[android] RN0.43 capacity (#735)

Fixed android project build issues that have place due to the following breaking changes: 
facebook/react-native#12329
facebook/react-native#12396

Author: nihgwu

android/app/src/main/java/com/microsoft/codepush/react/CodePushNativeModule.java

@@ -19,7 +19,8 @@
 import com.facebook.react.bridge.ReadableMap;
 import com.facebook.react.bridge.WritableMap;
 import com.facebook.react.modules.core.DeviceEventManagerModule;
-import com.facebook.react.uimanager.ReactChoreographer;
+import com.facebook.react.modules.core.ChoreographerCompat;
+import com.facebook.react.modules.core.ReactChoreographer;
 
 import org.json.JSONArray;
 import org.json.JSONException;
@@ -254,7 +255,7 @@ public void call(DownloadProgress downloadProgress) {
                             getReactApplicationContext().runOnUiQueueThread(new Runnable() {
                                 @Override
                                 public void run() {
-                                    ReactChoreographer.getInstance().postFrameCallback(ReactChoreographer.CallbackType.TIMERS_EVENTS, new Choreographer.FrameCallback() {
+                                    ReactChoreographer.getInstance().postFrameCallback(ReactChoreographer.CallbackType.TIMERS_EVENTS, new ChoreographerCompat.FrameCallback() {
                                         @Override
                                         public void doFrame(long frameTimeNanos) {
                                             if (!latestDownloadProgress.isCompleted()) {