Datamodels - A few small fixes to fix errors during startup

Layer properties - Reimplemented property tree
Stylet - Add support for binding views to generic VMs

src/Artemis.Core/Models/Profile/Layer.cs

@@ -125,7 +125,7 @@ namespace Artemis.Core.Models.Profile
 
             General.ApplyToEntity();
             Transform.ApplyToEntity();
-            LayerBrush.BaseProperties.ApplyToEntity();
+            LayerBrush?.BaseProperties.ApplyToEntity();
 
             // LEDs
             LayerEntity.Leds.Clear();
@@ -212,7 +212,7 @@ namespace Artemis.Core.Models.Profile
         {
             General.Override(timeOverride);
             Transform.Override(timeOverride);
-            LayerBrush.BaseProperties.Override(timeOverride);
+            LayerBrush?.BaseProperties.Override(timeOverride);
         }
 
         /// <inheritdoc />

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

@@ -13,6 +13,11 @@ namespace Artemis.Core.Models.Profile.LayerProperties
         {
         }
 
+        /// <summary>
+        ///     The parent group of this layer property, set after construction
+        /// </summary>
+        public LayerPropertyGroup Parent { get; internal set; }
+
         /// <summary>
         ///     Gets whether keyframes are supported on this property
         /// </summary>

src/Artemis.Core/Models/Profile/LayerPropertyGroup.cs

@@ -23,6 +23,11 @@ namespace Artemis.Core.Models.Profile
             _layerPropertyGroups = new List<LayerPropertyGroup>();
         }
 
+        /// <summary>
+        ///     The parent group of this layer property group, set after construction
+        /// </summary>
+        public LayerPropertyGroup Parent { get; internal set; }
+
         /// <summary>
         /// Gets whether this property group's properties are all initialized
         /// </summary>
@@ -67,10 +72,11 @@ namespace Artemis.Core.Models.Profile
                 var propertyDescription = Attribute.GetCustomAttribute(propertyInfo, typeof(PropertyDescriptionAttribute));
                 if (propertyDescription != null)
                 {
-                    if (!typeof(LayerProperty<>).IsAssignableFrom(propertyInfo.PropertyType))
+                    if (!typeof(BaseLayerProperty).IsAssignableFrom(propertyInfo.PropertyType))
                         throw new ArtemisPluginException("Layer property with PropertyDescription attribute must be of type LayerProperty");
 
-                    var instance = (BaseLayerProperty) Activator.CreateInstance(propertyInfo.PropertyType);
+                    var instance = (BaseLayerProperty) Activator.CreateInstance(propertyInfo.PropertyType, true);
+                    instance.Parent = this;
                     InitializeProperty(layer, path, instance);
                     propertyInfo.SetValue(this, instance);
                     _layerProperties.Add(instance);
@@ -84,6 +90,7 @@ namespace Artemis.Core.Models.Profile
                             throw new ArtemisPluginException("Layer property with PropertyGroupDescription attribute must be of type LayerPropertyGroup");
 
                         var instance = (LayerPropertyGroup) Activator.CreateInstance(propertyInfo.PropertyType);
+                        instance.Parent = this;
                         instance.InitializeProperties(layerService, layer, $"{path}{propertyInfo.Name}.");
                         propertyInfo.SetValue(this, instance);
                         _layerPropertyGroups.Add(instance);