[Controls] Ignore random failures on AppCenter

Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla39821.cs

@@ -120,6 +120,8 @@ namespace Xamarin.Forms.Controls.Issues
 
 #if UITEST
 		[Test]
+		[Ignore("Fails intermittently on TestCloud")]
+		[Category(Core.UITests.UITestCategories.ManualReview)]
 		public void DoesNotCrash()
 		{
 			RunningApp.Tap(q => q.Marked("Animate"));

Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Bugzilla41415.cs

@@ -96,6 +96,8 @@ namespace Xamarin.Forms.Controls.Issues
 #if UITEST && __ANDROID__
 
 		[Test]
+		[Ignore("Fails intermittently on TestCloud")]
+		[Category(Core.UITests.UITestCategories.ManualReview)]
 		public void Bugzilla41415Test()
 		{
 			RunningApp.WaitForElement(q => q.Marked(ButtonText));

Xamarin.Forms.Controls.Issues/Xamarin.Forms.Controls.Issues.Shared/Issue2482.cs

@@ -71,6 +71,8 @@ namespace Xamarin.Forms.Controls.Issues
 
 #if UITEST
 		[Test]
+		[Ignore("Fails intermittently on TestCloud")]
+		[Category(Core.UITests.UITestCategories.ManualReview)]
 		public void AnimationCancel()
 		{
 			RunningApp.WaitForElement(ButtonId);