Various cmake adjustments
This makes a few minor changes to the CMake system to use the same executable names as the Makefile path for the supported platforms. It also removes the legacy (now unsupported) ddraw/win32 target.
This makes a few minor changes to the CMake system to use the same executable names as the Makefile path for the supported platforms. It also removes the legacy (now unsupported) ddraw/win32 target.