[TIMOB-26424] Android: Added Ti.App "pause" and "resume" lifecycle events

   -- Start application log -----------------------------------------------------
   [INFO]  TiApplication: (main) [0,0] checkpoint, app created.
   [INFO]  MultiDex: VM with version 2.1.0 has multidex support
   [INFO]  MultiDex: Installing application
   [INFO]  MultiDex: VM has multidex support, MultiDex support library is disabled.
   [INFO]  TiApplication: (main) [141,141] Analytics have been disabled
   [INFO]  TiApplication: (main) [2633,2774] Titanium Javascript runtime: v8
   [INFO]  TiRootActivity: (main) [0,0] checkpoint, on root activity create, savedInstanceState: null
   [WARN]  art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
   [INFO]  test_window 1.0 (Powered by Titanium 7.5.0.2e5a7423d0)
   [INFO]  TiApplication: (main) [260,260] Analytics have been disabled
   [INFO]  TiRootActivity: (main) [0,0] checkpoint, on root activity resume. activity = com.miga.testmap.Test_windowActivity@d367838
   [INFO]  RESUME
   [INFO]  RESUMED
   [INFO]  PAUSE
   [INFO]  PAUSED
   [DEBUG] Window: Checkpoint: postWindowCreated()
   [INFO]  RESUME
   [INFO]  RESUMED
   

   var win1 = Ti.UI.createWindow({
   	backgroundColor: 'white'
   });
   
   Ti.App.addEventListener('resume', () => {
       Ti.API.info('RESUME');
   });
   
   Ti.App.addEventListener('pause', () => {
       Ti.API.info('PAUSE');
   });
   
   
   Ti.App.addEventListener('resumed', () => {
       Ti.API.info('RESUMED');
   });
   
   Ti.App.addEventListener('paused', () => {
       Ti.API.info('PAUSED');
   });
   
   var btn = Ti.UI.createButton({
   	title: "open"
   });
   
   btn.addEventListener("click",function(){
   	var win2 = Ti.UI.createWindow({
   		backgroundColor: 'white'
   	});
   	win2.open();
   })
   
   win1.add(btn);
   win1.open();