docs: add plugin setup guide

plugin/lib/commonlibf4/include/RE/I/InventoryInterface.h

@@ -0,0 +1,48 @@
+#pragma once
+
+#include "RE/B/BSCRC32.h"
+
+namespace RE
+{
+	class BGSInventoryItem;
+
+	namespace InventoryInterface
+	{
+		class CountChangedEvent
+		{
+		public:
+			// members
+			std::uint32_t inventoryOwnerID;  // 00
+			std::uint32_t itemID;            // 04
+			std::int32_t  newCount;          // 08
+			std::int32_t  oldCount;          // 0C
+		};
+		static_assert(sizeof(CountChangedEvent) == 0x10);
+
+		class FavoriteChangedEvent
+		{
+		public:
+			~FavoriteChangedEvent() noexcept {}  // intentional
+
+			// members
+			BGSInventoryItem* itemAffected;  // 0
+		};
+		static_assert(sizeof(FavoriteChangedEvent) == 0x8);
+
+		class Handle
+		{
+		public:
+			~Handle() noexcept {}  // intentional
+
+			// members
+			std::uint32_t id;  // 0
+		};
+		static_assert(sizeof(Handle) == 0x4);
+	}
+
+	template <>
+	struct BSCRC32<InventoryInterface::Handle>
+	{
+		[[nodiscard]] std::uint32_t operator()(InventoryInterface::Handle a_data) const noexcept;
+	};
+}