docs: add plugin setup guide

plugin/lib/commonlibf4/include/RE/T/TESWeatherList.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "RE/B/BSSimpleList.h"
+
+namespace RE
+{
+	class WeatherEntry;
+
+	class TESWeatherList :
+		public BSSimpleList<WeatherEntry*>
+	{
+	public:
+	};
+	static_assert(sizeof(TESWeatherList) == 0x10);
+}