ARM Macintosh build support

[pixe1reality]

Hello,
I've been attempting to compile FTEQW for an ARM Mac platform, but after running make makelibs, it will throw the following error after downloading and testing jpegsrc:

checking build system type... arm-apple-darwin23.6.0
checking host system type... Invalid configuration 'arm64-apple-darwin23.6.0': machine 'arm64-apple' not recognized
configure: error: /bin/sh ./config.sub arm64-apple-darwin23.6.0 failed

After I checked the rest of the log and the makefile, it seems that the compile scripts do not support ARM versions of macOS. Is there any plans to add support in the future?

[Xylemon]

We would love to have FTEQW on as many platforms as possible, it's just a matter of having the hardware and testing, but if anyone wants to send PRs we are all for it!