add new struct definitions

Il2CppInspector.Common/Next/BinaryMetadata/Il2CppTokenIndexMethodTuple.cs

@@ -0,0 +1,15 @@
+using VersionedSerialization.Attributes;
+
+namespace Il2CppInspector.Next.BinaryMetadata;
+
+[VersionedStruct]
+public partial struct Il2CppTokenIndexMethodTuple
+{
+    public uint Token;
+    public int Index;
+
+    [CustomSerialization("reader.ReadNUInt();", "is32Bit ? 4 : 8")]
+    public ulong Method; // void**
+
+    public uint GenericMethodIndex;
+}