docs: add plugin setup guide

plugin/lib/commonlibf4/include/RE/B/BGSTextureModel.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "RE/T/TESModel.h"
+
+namespace RE
+{
+	class __declspec(novtable) BGSTextureModel :
+		public TESModel  // 00
+	{
+	public:
+		static constexpr auto RTTI{ RTTI::BGSTextureModel };
+		static constexpr auto VTABLE{ VTABLE::BGSTextureModel };
+	};
+	static_assert(sizeof(BGSTextureModel) == 0x30);
+}