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/main/java/com/facebook/react/modules/debug/DeveloperSettings.java

@@ -38,4 +38,15 @@ public interface DeveloperSettings {
    * @return Whether element inspector is enabled.
    */
   boolean isElementInspectorEnabled();
+
+  /**
+   * @return Whether remote JS debugging is enabled.
+   */
+  boolean isRemoteJSDebugEnabled();
+
+  /**
+   * Enable/Disable remote JS debugging.
+   */
+  void setRemoteJSDebugEnabled(boolean remoteJSDebugEnabled);
+
 }