Cloned from launchpad blueprint https://blueprints.launchpad.net/oslo/+spec/oslo-db-lib.

Description:

The DB API is pretty stable now, so it should be released as a separate package.

To get oslo.db released as separate library, we should follow the next steps:
  - solve the possible conflicts with the OpenStack projects due to defining the same oslo.config options in openstack common modules (at least lockutils and log)
  - clean up oslo.db code remove dependency on eventlet
  - sync openstack.common.db code version into all projects
  - make oslo.db library

Proof of concept of oslo.db module is here: https://github.com/malor/oslo.db
POC oslo.db module in action: https://review.openstack.org/#/c/42159/

Specification URL (additional information):

None