Adding a standalone list_sddc function, parameters to handle the
calling of whether or not the intended action be a list, create, and/or
delete method, added a standard output function to match what’s
available as part of the logical network example.
* Support VMware Cloud on AWS Networking APIs and add a few samples.
* Added vsphere_client module to simplify login and API invocation.
* Modified existing samples to use vsphere_client.
* Update on vm template APIs.
Signed-off-by: Tianhao He <het@vmware.com>
