Test creation of server attached to created port

Add test to creation of server attachec to user created port
  - Create security group
  - Create network, subnet, router
  - Create port with security group
  - Call a function to create a server with port id
  - Check public network connectivity

Change-Id: I7aad651c5b1899d21f3c4b1c11d67b523ae6e727
1 file changed