This commit renames glance options to glare, to avoid confusion. It also
deprecates 'glance' group for glare opts.
According to Iced3c68010eb6bcd2a6a1ec8f1c6883f84cbe77f new endpoint is
going to be artifact, this commit reflects that.
Partial-Bug: #1550427
Change-Id: Ie4ac8cc6d31090fcad557201e319848bb4639477