Add alert sound theme support

Filtration.ThemeEditor/ViewModels/StrIntThemeComponentViewModel.cs

@@ -0,0 +1,8 @@
+namespace Filtration.ThemeEditor.ViewModels
+{
+    public class StrIntThemeComponentViewModel : ThemeComponentViewModel
+    {
+        public int Value { get; set; }
+        public int SecondValue { get; set; }
+    }
+}