This change adds database support for the python-openstackclient
project for the force-delete and cluster-force-delete commands.
The trove command force-delete is now:
openstack database instance force delete
The trove command cluster-force-delete is now:
openstack database cluster force delete
Change-Id: I919678ca6b06d3b5762eac1990cc1fbf0e149d7c
Partially-Implements: blueprint trove-support-in-python-openstackclient
Signed-off-by: Zhao Chao <zhaochao1984@gmail.com>