Import code from previous AssetBuilder version

test/ZoneCodeGeneratorTests/FieldInjector.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Reflection;
+
+namespace ZoneCodeGeneratorTests
+{
+    internal static class FieldInjector
+    {
+        public static bool InjectToField(object target, object toInject)
+        {
+            if(target == null || toInject == null)
+                throw new ArgumentException("Params must not be null");
+
+            var injectType = toInject.GetType();
+            var fields = target.GetType().GetFields(BindingFlags.NonPublic | BindingFlags.Instance);
+
+            foreach(var field in fields)
+            {
+                if (!field.FieldType.IsAssignableFrom(injectType)) continue;
+
+                field.SetValue(target, toInject);
+                return true;
+            }
+
+            return false;
+        }
+    }
+}