Read CPUID to select microarchitecture releases #169
Description
Distributions now emits v2 and v3 AMD64 binaries (ipfs/distributions@dc044cd), it would be nice if ipfs-update checked CPUID in order to determine the microarchitecture level and download the matching binary if possible.
Higher microarchitecture levels supports more instructions in compiled code (not only reflective assembly).
Which should accelerate some particular instructions.