Extend CLI functionality

Adds some CLI functionality to murano CLI
 - environment show, create, delete, rename
 - deployment list
 - category list
 - package list, download, import, show, delete
Updates openstack-common, adds jsonutils and timeutils

Partially implements: blueprint murano-cli-client

Change-Id: I66215f56bcf8eba3329803650e70437175c49376
Merge "Extend CLI functionality"