docs: add plugin setup guide

plugin/lib/commonlibf4/include/RE/H/hkMap.h

@@ -0,0 +1,49 @@
+#pragma once
+
+#include "RE/H/hkContainerHeapAllocator.h"
+
+namespace RE
+{
+	template <class T>
+	class hkMapOperations
+	{
+	public:
+	};
+	static_assert(std::is_empty_v<hkMapOperations<void>>);
+
+	template <class T, class U, class Operations = hkMapOperations<T>>
+	class hkMapBase
+	{
+	public:
+		class Pair
+		{
+		public:
+			// members
+			T key;  // 00
+			U val;  // ??
+		};
+
+		// members
+		Pair*        elem;       // 00
+		std::int32_t elemCount;  // 08 - high bits are flags
+		std::int32_t hashMod;    // 0C - capacity - 1
+	};
+	static_assert(sizeof(hkMapBase<std::uint64_t, std::uint64_t>) == 0x10);
+
+	template <class T, class U, class Operations = hkMapOperations<T>, class Allocator = hkContainerHeapAllocator>
+	class hkMap :
+		public hkMapBase<T, U, Operations>
+	{
+	public:
+	};
+	static_assert(sizeof(hkMap<std::uint64_t, std::uint64_t>) == 0x10);
+
+	template <class T, class U, class Allocator = hkContainerHeapAllocator>
+	class hkPointerMap
+	{
+	public:
+		// members
+		hkMap<std::uint64_t, std::uint64_t, hkMapOperations<std::uint64_t>, Allocator> map;  // 10
+	};
+	static_assert(sizeof(hkPointerMap<void*, void*>) == 0x10);
+}