Added osprofiler headers to cors middleware
Added osprofiler headers to cors middleware

This patch adds the osprofiler trace headers to the CORS configuration
block: X-Trace-Info, X-Trace-HMAC

Change-Id: Ie6b493252973177727cd4445ec12c36c3c90fd71

cloudbase/cinder,phenoxim/cinder,j-griffith/cinder,dims/cinder,mahak/cinder,Hybrid-Cloud/cinder,bswartz/cinder,Datera/cinder,openstack/cinder,j-griffith/cinder,Hybrid-Cloud/cinder,ge0rgi/cinder,bswartz/cinder,dims/cinder,NetApp/cinder,cloudbase/cinder,Datera/cinder,eharney/cinder,phenoxim/cinder,openstack/cinder,mahak/cinder,eharney/cinder,NetApp/cinder,Nexenta/cinder,Nexenta/cinder