Nuget - Updated packages

Brush properties - Added default values
Brush properties - Removed option to always auto-expand groups
Layer properties - Remember expanded/collapsed groups
Storage - Added migration system
Storage - Added migration that removes profiles made in the old layer properties format
Layer timeline - Added back zoom functionality

src/Artemis.Core/Models/Profile/LayerProperties/LayerProperty.cs

@@ -55,6 +55,12 @@ namespace Artemis.Core.Models.Profile.LayerProperties
             internal set => _currentValue = value;
         }
 
+        /// <summary>
+        ///     Gets or sets the default value of this layer property. If set, this value is automatically applied if the property has no
+        ///     value in storage
+        /// </summary>
+        public T DefaultValue { get; set; }
+
         /// <summary>
         ///     Gets a read-only list of all the keyframes on this layer property
         /// </summary>
@@ -275,5 +281,10 @@ namespace Artemis.Core.Models.Profile.LayerProperties
                 EasingFunction = (int) k.EasingFunction
             }));
         }
+
+        public override void ApplyDefaultValue()
+        {
+            CurrentValue = DefaultValue;
+        }
     }
 }