Make "Debug JS" dev menu option persist across app restarts on RN Android

Summary:
1. Make "Remote JS Debug" and "Start/Stop Profile" options persist across app restarts.
2. Check and confirm:
       - All options in the Android dev menu are persisted now.
       - The behavior is the same on Android and iOS now.

Reviewed By: mkonicek

Differential Revision: D3340097

fbshipit-source-id: 4087b6605031c650e164282244cedb006f8f6fd3

ReactAndroid/src/androidTest/java/com/facebook/react/testing/ReactSettingsForTests.java

@@ -36,4 +36,14 @@ public class ReactSettingsForTests implements DeveloperSettings {
   public boolean isElementInspectorEnabled() {
     return false;
   }
+
+  @Override
+  public boolean isRemoteJSDebugEnabled() {
+    return false;
+  }
+
+  @Override
+  public void setRemoteJSDebugEnabled(boolean remoteJSDebugEnabled) {
+
+  }
 }