Add libvirt API acl test case for virsh vol-create

Update virsh vol-create test case for test API 'create' in
virStorageVolPtr set.

Signed-off-by: Wayne Sun <gsun@redhat.com>
Add libvirt API acl test case for virsh vol-wipe

Update virsh vol-wipe test case for test API 'format' in
virStorageVolPtr set.

Signed-off-by: Wayne Sun <gsun@redhat.com>
Add libvirt API acl test case for virsh vol-resize

Update virsh vol-resize test case for test API 'resize' in
virStorageVolPtr set.

Signed-off-by: Wayne Sun <gsun@redhat.com>
Add libvirt API acl test case for virsh vol-download and vol-upload

Update virsh vol_download_upload test case for test API 'data-write'
and 'data-read' in virStorageVolPtr set.

Signed-off-by: Wayne Sun <gsun@redhat.com>