Changes all collections from collection builders to resolve the concrete instances lazily.

This means we don't have to inject Lazy<T> all over the place when dealing with
colleciton builders and circular references since this will automatically just work OOTB.
This in theory should also allocate less instances during startup.

src/Umbraco.Core/Strings/UrlSegmentProviderCollection.cs

@@ -1,12 +1,13 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using Umbraco.Cms.Core.Composing;
 
 namespace Umbraco.Cms.Core.Strings
 {
     public class UrlSegmentProviderCollection : BuilderCollectionBase<IUrlSegmentProvider>
     {
-        public UrlSegmentProviderCollection(IEnumerable<IUrlSegmentProvider> items)
-            : base(items)
-        { }
+        public UrlSegmentProviderCollection(Func<IEnumerable<IUrlSegmentProvider>> items) : base(items)
+        {
+        }
     }
 }