This change adds database support to python-openstackclient
project for the cluster-grow and cluster-shrink commands.
The trove command cluster-grow is now:
openstack database cluster grow
The trove command cluster-shrink is now:
openstack database cluster shrink
Change-Id: I449e7f7d841ea266611ff79f8a41f6e730fced3c
Partially-Implements: blueprint trove-support-in-python-openstackclient
Signed-off-by: Zhao Chao <zhaochao1984@gmail.com>