Add VRChat and GitHub packages to Unity project

Assets/Udon/ProgramSources/Abstract.meta

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Assets/Udon/ProgramSources/Abstract/AbstractSerializedUdonProgramAsset.cs

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+using System.Collections;
+using System.Collections.Generic;
+using JetBrains.Annotations;
+using UnityEngine;
+using VRC.Udon.Common.Interfaces;
+
+namespace VRC.Udon
+{
+    public abstract class AbstractSerializedUdonProgramAsset : ScriptableObject
+    {
+        [PublicAPI]
+        public abstract void StoreProgram(IUdonProgram udonProgram);
+
+        [PublicAPI]
+        public abstract IUdonProgram RetrieveProgram();
+    }
+}

Assets/Udon/ProgramSources/Abstract/AbstractSerializedUdonProgramAsset.cs.meta

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Assets/Udon/ProgramSources/Abstract/AbstractUdonProgramSource.cs

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+using System;
+using System.Collections.Generic;
+using JetBrains.Annotations;
+using UnityEngine;
+using VRC.Udon.Common.Interfaces;
+
+namespace VRC.Udon
+{
+    public abstract class AbstractUdonProgramSource : ScriptableObject
+    {
+        [PublicAPI]
+        public abstract AbstractSerializedUdonProgramAsset SerializedProgramAsset { get; }
+
+        [PublicAPI]
+        public abstract void RunEditorUpdate(UdonBehaviour udonBehaviour, ref bool dirty);
+
+        [PublicAPI]
+        public abstract void RefreshProgram();
+    }
+}

Assets/Udon/ProgramSources/Abstract/AbstractUdonProgramSource.cs.meta

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Assets/Udon/ProgramSources/SerializedUdonProgramAsset.cs

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+using System;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Profiling;
+using VRC.Udon.Common;
+using VRC.Udon.Common.Interfaces;
+using VRC.Udon.Serialization.OdinSerializer;
+
+namespace VRC.Udon.ProgramSources
+{
+    public sealed class SerializedUdonProgramAsset : AbstractSerializedUdonProgramAsset
+    {
+        private const DataFormat DEFAULT_SERIALIZATION_DATA_FORMAT = DataFormat.Binary;
+
+        [SerializeField, HideInInspector]
+        private string serializedProgramBytesString;
+
+        [SerializeField, HideInInspector]
+        private List<UnityEngine.Object> programUnityEngineObjects;
+
+        // Store the serialization DataFormat that was actually used to serialize the program.
+        // This allows us to change the DataFormat later (ex. switch to binary) without causing already serialized programs to use the wrong DataFormat.
+        // Programs will be deserialized using the previous format and will switch to the new format if StoreProgram is called again later.
+        [SerializeField, HideInInspector]
+        private DataFormat serializationDataFormat = DEFAULT_SERIALIZATION_DATA_FORMAT;
+
+        public override void StoreProgram(IUdonProgram udonProgram)
+        {
+            byte[] serializedProgramBytes = SerializationUtility.SerializeValue(udonProgram, DEFAULT_SERIALIZATION_DATA_FORMAT, out programUnityEngineObjects);
+            serializedProgramBytesString = Convert.ToBase64String(serializedProgramBytes);
+            serializationDataFormat = DEFAULT_SERIALIZATION_DATA_FORMAT;
+
+            #if UNITY_EDITOR
+            UnityEditor.EditorUtility.SetDirty(this);
+            #endif
+        }
+
+        public override IUdonProgram RetrieveProgram()
+        {
+            byte[] serializedProgramBytes = Convert.FromBase64String(serializedProgramBytesString ?? "");
+            return SerializationUtility.DeserializeValue<IUdonProgram>(serializedProgramBytes, serializationDataFormat, programUnityEngineObjects);
+        }
+    }
+}

Assets/Udon/ProgramSources/SerializedUdonProgramAsset.cs.meta

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