Added HasMetadataOfType extension to materials

Author: LogicalError

Runtime/AssetExtensions/HasMetadataOfTypeExtensions.cs

@@ -0,0 +1,12 @@
+using System.Runtime.CompilerServices;
+using UnityEngine;
+
+public static class HasMetadataOfTypeExtensions
+{
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public static bool HasMetadataOfType<Metadata>(this Material asset)
+        where Metadata : CustomAssetMetadata
+    {
+        return MetadataLookup.HasMetadataOfType<Metadata>(asset);
+    }
+}