feat: add initial People Playground mod development kit

extracted_wiki_content/snippets/empty_entry_point.txt

@@ -0,0 +1,18 @@
+URL: https://wiki.studiominus.nl/snippets/entrypoint.html
+Title: People Playground Modding - Empty entry point
+==================================================
+
+Empty entry point
+This code snippet is an entry point template.
+using UnityEngine;
+
+namespace Mod
+{
+    public class Mod
+    {
+        public static void Main()
+        {
+            
+        }
+    }
+}