Feature Request: When saving data for header files have the option to make the numbers unsigned

Right now the data constants been saved to the header files are assumed to be signed. However, that Vulkan API expects unsigned father more it makes logical sense that it should be unsigned as we don't care about the sign bit. But to avoid stress for everyone, would be nice to simply added as an option. So "-mfmt=num" vs "-mfmt=unum"

Cheers,
Tomas