Add VRChat and GitHub packages to Unity project

Assets/Udon/WrapperModules/ExternVRCInstantiate.cs

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+#if !VRC_CLIENT
+using System.Collections.Generic;
+using UnityEngine;
+using VRC.Udon;
+using VRC.Udon.Common.Attributes;
+using VRC.Udon.Common.Delegates;
+using VRC.Udon.Common.Interfaces;
+using VRC.Udon.Security.Interfaces;
+using VRC.Udon.Wrapper.Modules;
+
+
+[assembly: UdonWrapperModule(typeof(ExternVRCInstantiate))]
+
+namespace VRC.Udon.Wrapper.Modules
+{
+    public class ExternVRCInstantiate : IUdonWrapperModule
+    {
+        public string Name => "VRCInstantiate";
+
+        private readonly IUdonSecurityBlacklist _blacklist;
+
+        private readonly Dictionary<string, int> _parameterCounts;
+        private readonly Dictionary<string, UdonExternDelegate> _functionDelegates;
+
+        public ExternVRCInstantiate(IUdonComponentGetter componentGetter, IUdonSecurityBlacklist blacklist)
+        {
+            _blacklist = blacklist;
+
+            _parameterCounts = new Dictionary<string, int>
+            {
+                {"__Instantiate__UnityEngineGameObject__UnityEngineGameObject", 2},
+            };
+
+            _functionDelegates = new Dictionary<string, UdonExternDelegate>
+            {
+                {"__Instantiate__UnityEngineGameObject__UnityEngineGameObject", __Instantiate__UnityEngineGameObject__UnityEngineGameObject}
+            };
+        }
+
+        public int GetExternFunctionParameterCount(string externFunctionSignature)
+        {
+            if(_parameterCounts.TryGetValue(externFunctionSignature, out int numParameters))
+            {
+                return numParameters;
+            }
+
+            throw new System.NotSupportedException($"Function '{externFunctionSignature}' is not implemented yet");
+        }
+
+        public UdonExternDelegate GetExternFunctionDelegate(string externFunctionSignature)
+        {
+            if(_functionDelegates.TryGetValue(externFunctionSignature, out UdonExternDelegate externDelegate))
+            {
+                return externDelegate;
+            }
+
+            throw new System.NotSupportedException($"Function '{externFunctionSignature}' is not implemented yet");
+        }
+
+        private void __Instantiate__UnityEngineGameObject__UnityEngineGameObject(IUdonHeap heap, uint[] parameterAddresses)
+        {
+            GameObject original = heap.GetHeapVariable<GameObject>(parameterAddresses[0]);
+            #if !UDON_DISABLE_SECURITY
+            _blacklist.FilterBlacklisted(ref original);
+            #endif
+
+            GameObject clone = Object.Instantiate(original);
+            foreach(UdonBehaviour udonBehaviour in clone.GetComponentsInChildren<UdonBehaviour>())
+            {
+                UdonManager.Instance.RegisterUdonBehaviour(udonBehaviour);
+                udonBehaviour.InitializeUdonContent();
+            }
+
+            heap.SetHeapVariable(parameterAddresses[1], clone);
+        }
+    }
+}
+#endif

Assets/Udon/WrapperModules/ExternVRCInstantiate.cs.meta

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