add focus project, fix recovery save on ui thread, fix grid commit, wave_sdk submodule, use PlatformActivity as base for android/quest/focus and extend VRActivity on focus.

android/android/src/main/java/com/omixlab/panopainter/PlatformActivity.java

@@ -0,0 +1,6 @@
+package com.omixlab.panopainter;
+
+import android.app.NativeActivity;
+
+public class PlatformActivity extends NativeActivity {
+}