refactor(srp): move rendering data ownership into universal package

managed/XCEngine.ScriptCore/Rendering/Universal/ShadowData.cs

@@ -0,0 +1,25 @@
+using XCEngine;
+
+namespace XCEngine.Rendering.Universal
+{
+    public sealed class ShadowData
+    {
+        internal static readonly ShadowData Default =
+            new ShadowData(
+                DirectionalShadowData.Default);
+
+        internal ShadowData(
+            DirectionalShadowData mainDirectionalShadow)
+        {
+            this.mainDirectionalShadow =
+                mainDirectionalShadow ??
+                DirectionalShadowData.Default;
+        }
+
+        public DirectionalShadowData mainDirectionalShadow { get; }
+
+        public bool hasMainDirectionalShadow =>
+            mainDirectionalShadow.enabled;
+    }
+}
+