Doesn't build on M1 Pro (Apple Silicon)

[bergkvist]

I'm guessing this doesn't support anything other than x86-64 builds, due to the use of AVX256 and inline assembly. Would be nice if it was also possible to build on aarch64/arm64 cpus.

In file included from /Users/tobias/repos/Virgo/src/VPD/fft_circuit_GKR.cpp:3:
/Users/tobias/repos/Virgo/include/linear_gkr/prime_field.h:9:10: fatal error: immintrin.h: No such file or directory
    9 | #include <immintrin.h>
      |          ^~~~~~~~~~~~~
compilation terminated.
make[2]: *** [CMakeFiles/fft_gkr.dir/build.make:76: CMakeFiles/fft_gkr.dir/src/VPD/fft_circuit_GKR.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:85: CMakeFiles/fft_gkr.dir/all] Error 2
make: *** [Makefile:91: all] Error 2