To be able to create profiling traces for Neutron, client should be
able to send special HTTP header that contains trace info.
This patch is also important to be able to make cross project
traces. (Typical case nova calls neutron via python client, if
profiler is initialized in nova, neutron client will add extra
header, that will be parsed by special osprofiler middleware in neutron
api.)
Closes-Bug: #1335640
Co-Authored-By: Roman Podoliaka <rpodolyaka@mirantis.com>
Change-Id: Ic11796889075b2a0e589b70398fc4d4ed6f3ef7c
badfc96046