Detect the IP version used instead of relying on the
user specifying the IP version for services.
The IP version is stored in a net_ip_version_map which
is passed to all services in ServiceData.
Deprecates the following parameters:
CephIPv6, CorosyncIPv6, RabbitIPv6, MemcachedIPv6,
MysqlIPv6, RedisIPv6 and NeutronOverlayIPVersion.
Change-Id: Iebfd8ef686381be2f45d0d4c45dfd6bf654d1ac6