Added rabbitmq management code

Added rabbitmq management code, added a parameter to specify
  whether rabbitmq to be managed within this module or not.
Added zookeeper management code

zookeeper management code has been added.
Two parameters added to class contrail,
  1. manage_zookeepr: Whether to manage zookeeper in this module
  2. zookeeper_server_id: A unique id within the zookeeper cluster.
Added haproxy management

Added optional haproxy management code, also added two parameters
to contrail class,

1. manage_haproxy - Whether to manage haproxy in this module
2. control_ip_list - An array of contrail control node IP list
Added cassandra management code

Added cassandra management code to contrail module
Added redis management code

Added optional redis management code to contrail