feat: add initial People Playground mod development kit

extracted_wiki_content/internalReference/cannotshare.txt

@@ -0,0 +1,14 @@
+URL: https://wiki.studiominus.nl/internalReference/CannotShare.html
+Title: People Playground Modding - CannotShare
+==================================================
+
+public class CannotShare
+Inherits MonoBehaviour, Messages.IOnAfterDeserialise
+Behaviour that prevents the player from copying or uploading an object
+Fields
+public SpawnableAsset Substitute
+What should this object be replaced by when deserialised (pasted/loaded)?
+
+Methods
+public void OnAfterDeserialise(List<GameObject> gameObjects)
+No description provided