For people setting creating Sessions via load_from_conf_options, such as
the OpenStack services, turning on split-loggers needs to be done in a
config file. In order to do that, we need to expose it in the conf
options list.
Don't add it to the argparse options for now - it would just add another
command line option that is less likely to see use.
Change-Id: I106c6acbe306e581d293612630ec810c11d9d61c
python-openstackclient does this in a wrapper class around Session,
and openstacksdk does something similar that could be removed if support
were directly in keystoneauth.
Add this so that we can remove the custom wrapper/manipulation in
openstackclient and openstacksdk.
Change-Id: Icf00c66f57d20d2cef724c233160d3b1e0d52102
Session loading is being tested as part of the base session testing
file. It should be moved into the loading folder with other loading
specific tests.
Change-Id: I42ac48553ecd7fdda0357938387e17bdaf5e80a9