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.Storage/Migrations/AttributeBasedPropertiesMigration.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+using Artemis.Storage.Entities.Profile;
+using Artemis.Storage.Migrations.Interfaces;
+using LiteDB;
+
+namespace Artemis.Storage.Migrations
+{
+    public class AttributeBasedPropertiesMigration : IStorageMigration
+    {
+        public int UserVersion => 1;
+        public void Apply(LiteRepository repository)
+        {
+            if (repository.Database.CollectionExists("ProfileEntity"))
+                repository.Database.DropCollection("ProfileEntity");
+        }
+    }
+}

src/Artemis.Storage/Migrations/Interfaces/IStorageMigration.cs

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+using LiteDB;
+
+namespace Artemis.Storage.Migrations.Interfaces
+{
+    public interface IStorageMigration
+    {
+        int UserVersion { get; }
+        void Apply(LiteRepository repository);
+    }
+}