Player controls now get dynamically assigned to view model base classes.

This gives view models more freedom in how play events from the player are handled

Aurora/Design/Views/BaseViewModel.cs

@@ -2,6 +2,8 @@
 using System.ComponentModel;
 using System.Runtime.CompilerServices;
 using System.Threading.Tasks;
+using Aurora.Models.Media;
+using Xamarin.Forms;
 
 namespace Aurora.Design.Views
 {
@@ -11,6 +13,38 @@ namespace Aurora.Design.Views
         {
         }
 
+        #region Player 
+        public virtual void PlayExecute()
+        {
+
+        }
+        public virtual bool PlayCanExecute()
+        {
+            return true;
+        }
+
+        public virtual void NextExecute()
+        {
+
+        }
+        public virtual bool NextCanExecute()
+        {
+            return true;
+        }
+
+        public virtual void PreviousExecute()
+        {
+
+        }
+        public virtual bool PreviousCanExecute()
+        {
+            return true;
+        }
+
+        public BaseMedia Media { get; set; }
+
+        #endregion Player
+
         #region Lifecycle
         public virtual void OnActive() { }