Add SynchronizeTransformOnSpawn property to Scene NetworkObject

[TreeMaple]

Hello!

Currently, when a Scene NetworkObject spawns, it by default writes the position, rotation, and scale and sends them to the client. I would like to provide a field called SynchronizeTransformOnSpawn, which, when set to false, will prevent the Transform from being synchronized.

For example, functions within NetworkObject:

        /// <summary>
        /// Returns changed properties between a transform and values.
        /// </summary>
        private TransformPropertiesFlag GetTransformChanges(Transform t, Vector3 localPosition, Quaternion localRotation, Vector3 localScale)
        {
            TransformPropertiesFlag tpf = TransformPropertiesFlag.Unset;
            
            //here
            if (IsSceneObject && !SynchronizeTransformOnSpawn) return tpf;

            if (t.localPosition != localPosition)
                tpf |= TransformPropertiesFlag.Position;
            if (t.localRotation != localRotation)
                tpf |= TransformPropertiesFlag.Rotation;
            if (t.localScale != localScale)
                tpf |= TransformPropertiesFlag.Scale;

            return tpf;
        }

For example, Unity's NGO provides this feature: https://docs-multiplayer.unity3d.com/netcode/current/basics/networkobject/#transform-synchronization

Sorry, this is machine translation