* Add configuration of vlan trunk, security settings and port policies, and tests
This commit adds the following capabilities to the
vmware_dvs_portgroup module:
- Support for VLAN trunk portgroup
- Support for all security settings (promiscuous, forged transmits & mac
address changes)
- Support for all the port specific policies
- port specific policies match the vCenter UI behaviour (for instance:
block override is enabled by default)
- Cleanup and use of proper API entities not root entities
- Integration testing
* Cleanup of docs and adding more examples
