[vcloud_director] Fix module name.
[openstack|compute] Add support for config_drive
[vcloud_director] make available to Fog::Bin
[vcloud_director] add keys to Errors.missing_credentials
Merge pull request #2117 from nosborn/vcloud_director_module_name

[vcloud_director] Fix module name.
Merge pull request #2119 from frodenas/config_drive

[openstack|compute] Add support for config_drive