docs: add plugin setup guide

plugin/lib/commonlibf4/include/Scaleform/G/GFx_LogBase.h

@@ -0,0 +1,14 @@
+#pragma once
+
+namespace Scaleform::GFx
+{
+	template <class T>
+	class __declspec(novtable) LogBase
+	{
+	public:
+		virtual ~LogBase();  // 00
+
+		// add
+		virtual bool IsVerboseActionErrors();  // 01
+	};
+}