This patch adds command for set,get and delete default volume types
for projects.
This patch adds 3 commands :
1) Set
Set a default volume type for a project
cinder --os-volume-api-version 3.62 default-type-set <vol-type-id> <project-id>
2) Get
Get the default volume type for a project
cinder --os-volume-api-version 3.62 default-type-list --project-id <project-id>
Get all default types
cinder --os-volume-api-version 3.62 default-type-list
3) Unset
Unset default volume type for a project
cinder --os-volume-api-version 3.62 default-type-unset <project-id>
Implements: Blueprint multiple-default-volume-types
Change-Id: Id2fb00c218edbb98df3193577dba6a897c6e73f6