New: Use native dotnet host and DryIoc

(cherry picked from commit d6170dbfedf27a6218afe242a0fae2eb8b368aec)
(cherry picked from commit 7fe36a7e9222e830f4920e09a85115df0bdbf190)

src/NzbDrone.Core/Datastore/Extensions/CompositionExtensions.cs

@@ -0,0 +1,24 @@
+using DryIoc;
+using NzbDrone.Core.Datastore.Migration.Framework;
+
+namespace NzbDrone.Core.Datastore.Extensions
+{
+    public static class CompositionExtensions
+    {
+        public static IContainer AddDatabase(this IContainer container)
+        {
+            container.RegisterDelegate<IDbFactory, IMainDatabase>(f => new MainDatabase(f.Create()), Reuse.Singleton);
+            container.RegisterDelegate<IDbFactory, ILogDatabase>(f => new LogDatabase(f.Create(MigrationType.Log)), Reuse.Singleton);
+
+            return container;
+        }
+
+        public static IContainer AddDummyDatabase(this IContainer container)
+        {
+            container.RegisterInstance<IMainDatabase>(new MainDatabase(null));
+            container.RegisterInstance<ILogDatabase>(new LogDatabase(null));
+
+            return container;
+        }
+    }
+}