Part of the effort to clean up the Cinder logs is to use
the resource tag in the log format. We also want to have
some consistency with other projects in how we do logging.
This change adds the logging format to cinder.conf similar to
what Nova and others use, and most importantly turns on the use
of the resource tag that's in olso_log.
We're slowly cleaning up the logging in Cinder by doing things
like replacing "Delete volume %(volume_id)s compoleted" with
("Delete volume completed successfully.", resource=volume)
It woudl be good to have these picked up as we transition so we're
not missing info. Also, there's sure to be cases where "volume"
isn't a valid dbref and we find issues that need fixed.
Change-Id: I193637fea14d97183f6a9782f37d8edcf929e0c4