This is our initial port of intel intrinsics to Unikraft as an external library.
This release is based on the LLVM headers which were adapted to work on Unikraft
with GCC.
The library now works with GCC 6+.
Signed-off-by: Vlad-Andrei Badoiu <vlad_andrei.badoiu@stud.acs.upb.ro> Reviewed-by: Felipe Huici <felipe.huici@neclab.eu>