Minor refactor for syslog logging

- Fix missed log config notify for glance-api, glance-registry
- Fix confusing titles for generic/main Openstack services
- Removed ensure absent for config providers
- Removed confusing nonused logging template for local case
- Synced confusing 10-fuel & 20-fuel file lists to be the same
- Removed hardcoded logging_context_format_string,
  and logging_default_format_string config settings

Implements blueprint: refactor-logging-puppet-openstack-services

Change-Id: I543c52c9fe6a95d3bc6eb6f87c0599e659ee01ec
Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>