`entry_points` is a manually created fat macho, with a `LC_UNIXTHREAD` `LoadCommand`
for all the cpu types handled in YARA.

- arch 0: MC680X0
- arch 1: MC88000
- arch 2: POWERPC
- arch 3: POWERPC64
- arch 4: X86
- arch 5: X86_64
- arch 6: ARM
- arch 7: ARM64
- arch 8: SPARC
- arch 9: HPPA (not handled)
- arch 10: X86 with invalid LC_UNIXTHREAD => no entrypoint

`fat64` is manually created to use the fat_arch64 header.
