this implements two new resource types:
* openstack_networking_secgroup_v2 - create a neutron security group
* openstack_networking_secgroup_rule_v2 - create a newutron security
group rule
Unlike their nova counterparts the neutron security groups allow a user
to specify the target tenant_id allowing a cloud admin to create per
tenant resources.
This commit adds the openstack_lb_member_v1 resource. This resource models a
load balancing member which was previously coupled to the openstack_lb_pool_v1
resource.
By creating an actual member resource, load balancing members can now be
dynamically managed through terraform.
This commit adds further work to the OpenStack port resource:
* Makes relevant fields computed
* Adds state change functions
* Adds acceptance tests
* Adds Documentation
Cristian Calin