dbg_engine: shift thread register reads / process memory reads -> abstraction layer, rather than directly calling into demon; cache crash dump info, like thread info & memory ranges; implement thread reg reads & memory reads for dumps by using this acceleration structure when we have a dump handle, instead of regular demon reads.

src/win32/win32_inc.h

@@ -0,0 +1,11 @@
+// Copyright (c) Epic Games Tools
+// Licensed under the MIT license (https://opensource.org/license/mit/)
+
+#ifndef WIN32_INC_H
+#define WIN32_INC_H
+
+#if defined(X64_H)
+# include "win32/x64/win32_x64.h"
+#endif
+
+#endif // WIN32_INC_H