Move all scheduler options into their one of two groups. Many of the
options are simply renamed to remove their 'scheduler_' prefix, with
some exceptions:
* scheduler_default_filters -> enabled_filters
* scheduler_baremetal_default_filters -> baremetal_enabled_filters
* scheduler_driver_task_period -> periodic_task_interval
* scheduler_tracks_instance_changes -> track_instance_changes
Change-Id: I3f48e52815e80c99612bcd10cb53331a8c995fc3
Co-Authored-By: Stephen Finucane <sfinucan@redhat.com>
Implements: blueprint centralize-config-options-ocata
7d0381c91a