v2: Let's convert everything to std::chrono::timepoint (Avi Kivity)
v3: Use the to_timeptr approach suggested by Nadav Har'El

This test checks the functionality of the utimes support.

Signed-off-by: Raphael S. Carvalho <raphaelsc@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>