Move the pcsx2 project from pcsx2/windows/VCprojects/ to pcsx2/
This is to fix an issue that was causing the intermediate files to go to the wrong directory.
pcsx2/windows/VCprojects/Win32/Devel/../../GS/GS.o -> pcsx2/Win32/Devel/GS/GS.o
The solution files are unused and for ancient Visual Studio versions -
GSDumpGUI has its own solution file, and bin2cpp is included in the main
solution file.
The property sheets have either fallen out of use or were never used in
the first place.