docs: add plugin setup guide

plugin/lib/commonlibf4/include/Scaleform/R/Render_LinearHeap.h

@@ -0,0 +1,31 @@
+#pragma once
+
+namespace Scaleform
+{
+	class MemoryHeap;
+
+	namespace Render
+	{
+		class LinearHeap
+		{
+		public:
+			class PageType
+			{
+			public:
+				// members
+				std::byte* start;  // 00
+				std::byte* end;    // 08
+				std::byte* free;   // 10
+			};
+			static_assert(sizeof(PageType) == 0x18);
+
+			// members
+			MemoryHeap* heap;         // 00
+			std::size_t granularity;  // 08
+			PageType*   pagePool;     // 10
+			PageType*   lastPage;     // 18
+			std::size_t maxPages;     // 20
+		};
+		static_assert(sizeof(LinearHeap) == 0x28);
+	}
+}