docs: add plugin setup guide

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

@@ -0,0 +1,57 @@
+#pragma once
+
+#include "RE/H/hkArray.h"
+#include "RE/H/hkLocalArray.h"
+
+namespace RE
+{
+	template <class T>
+	class hkBitFieldStorage
+	{
+	public:
+		// members
+		T            words;    // 00
+		std::int32_t numBits;  // ??
+	};
+
+	template <class T>
+	class hkOffsetBitFieldStorage
+	{
+	public:
+		// members
+		T            words;   // 00
+		std::int32_t offset;  // ??
+	};
+
+	template <class T>
+	class hkBitFieldBase
+	{
+	public:
+		// members
+		T storage;  // 00
+	};
+
+	class hkBitField :
+		public hkBitFieldBase<hkBitFieldStorage<hkArray<std::uint32_t>>>
+	{
+	public:
+	};
+
+	class hkBitFieldEx :
+		public hkBitField
+	{
+	public:
+	};
+
+	class hkOffsetBitField :
+		public hkBitFieldBase<hkOffsetBitFieldStorage<hkArray<std::uint32_t>>>
+	{
+	public:
+	};
+
+	class hkOffsetBitFieldLocal :
+		public hkBitFieldBase<hkOffsetBitFieldStorage<hkLocalArray<std::uint32_t>>>
+	{
+	public:
+	};
+}