This change introduces glance.common.timeutils that provides the
timeutils previously consumed from oslo_utils.
Oslo is deprecating some timeutils functionality which of Glance
depends on. Suggested replacement (isoformat) would break glance APIs
so it's cleaner to carry this functionality in Glance rather than
re-invent the wheel.
Co-Authored-By: Erno Kuvaja <jokke@usr.fi>
Co-Authored-By: Sabari Kumar Murugesan <smurugesan@vmware.com>
Change-Id: I91e1cc9a273249fd88749cecf21200f3f5e2bab1
4d5330088f