Updated openstack/openstack
Project: openstack/glance  45dcdfb529f73023a20e291a5a62e3e516ab3b52
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Enable tasks REST API for async worker

- add REST API layer for async worker(tasks) to
support tasks operations.
- update to include sparse task for tasks.index
- add domain proxies for handling  authorization,
policy enforce, notification while processing
task requests.
- add Task domain entity and TaskFactory to create
new Task domain entity objects.
- add integration test for testing tasks api

Co-authored-by: Fei Long Wang <flwang@cn.ibm.com>

Partially implement blueprint async-glance-workers

Change-Id: I072cbf351c06f59a7702733b652bfa63e5abbaa6