Merge "Add config-internal/config-external to Neutron containers"

...tron/neutron-agents/neutron-dhcp-agent/config-external.sh

...tron/neutron-agents/neutron-dhcp-agent/config-internal.sh

...eutron/neutron-agents/neutron-l3-agent/config-external.sh

...eutron/neutron-agents/neutron-l3-agent/config-internal.sh

.../neutron-agents/neutron-metadata-agent/config-external.sh

.../neutron-agents/neutron-metadata-agent/config-internal.sh

...entos/binary/neutron/neutron-linuxbridge-agent/Dockerfile

...nary/neutron/neutron-linuxbridge-agent/config-external.sh

...nary/neutron/neutron-linuxbridge-agent/config-internal.sh

...entos/binary/neutron/neutron-openvswitch-agent/Dockerfile

...nary/neutron/neutron-openvswitch-agent/config-external.sh

...nary/neutron/neutron-openvswitch-agent/config-internal.sh

docker/centos/binary/neutron/neutron-server/Dockerfile

...r/centos/binary/neutron/neutron-server/config-external.sh

...r/centos/binary/neutron/neutron-server/config-internal.sh

docker/common/neutron/neutron-dhcp-agent/config-external.sh

docker/common/neutron/neutron-dhcp-agent/config-internal.sh

docker/common/neutron/neutron-dhcp-agent/start.sh

docker/common/neutron/neutron-l3-agent/config-external.sh

docker/common/neutron/neutron-l3-agent/config-internal.sh