feat: add initial People Playground mod development kit

extracted_wiki_content/details/mod_lifecycle.txt

@@ -0,0 +1,31 @@
+URL: https://wiki.studiominus.nl/details/lifecycle.html
+Title: People Playground Modding - Mod Lifecycle
+==================================================
+
+Mod Lifecycle
+Mods have a simple lifecycle. A lifecycle describes when a mod is created, what it does during its lifetime, and when it is destroyed.
+
+
+    
+        1. Load
+        Main menu loaded
+        mod.json is found and interpreted. All referenced scripts are read.
+    
+    
+        2. Compile
+        Mod loaded
+        All loaded scripts are compiled and written to a DLL by the compiler server. The DLL is loaded into memory. OnLoad is called.
+    
+    
+        3. Execute
+        Map loaded or catalog updated
+        ModAPI.ModMetaData is set and `Main` is called.
+    
+    
+        4. Termination
+        Game is exited
+        OnUnload is called. All resources are freed. 
+    
+
+Note that OnLoad is only called if the mod is active after compilation. If it's inactive (the default), it will call OnLoad once activated and never again.
+A mod may spit out errors in the compilation stage (or other stages). The errors are always logged to the Logs folder.