Make common paras graceful

[James Du]

The following parameters are assigned everywhere around the j2 files. They have same and complex value, looks ugly and is easy to make mistakes.

e.g.
    transport_url = rabbit://{% for host in groups['rabbitmq'] %}{{ rabbitmq_user }}:{{ rabbitmq_password }}@{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ rabbitmq_port }}{% if not loop.last %},{% endif %}{% endfor %}

    {% if orchestration_engine == 'KUBERNETES' %}
    auth_uri = {{ keystone_internal_url }}
    {% else %}
    auth_uri = {{ internal_protocol }}://{{ kolla_internal_fqdn }}:{{ keystone_public_port }}
    {% endif %}

    auth_url

    memcache_servers

    *_database_address(nova_database_address, neutron_database_address, ...)

I want to change it in this way:
    define a common parameter in all.yml, and use them around the j2 files.

[OpenStack Infra (hudson-openstack)]

Change abandoned by dupengfei (<email address hidden>) on branch: master
Review: https://review.openstack.org/369351
Reason: using dos format

[OpenStack Infra (hudson-openstack)]

Change abandoned by dupengfei (<email address hidden>) on branch: master
Review: https://review.openstack.org/369386
Reason: Delete this and create a bp

[Steven Dake (sdake)]

Marking invalid as a result of the comment in #2.