Adds support for the following:

1. A node resource to be assigned an IPv6 address.
2. Expands IPv4/v6 address validation checks.

Which issue this PR fixes:
fixes #44848 in combination with PR #45116

Special notes for your reviewer:

Release note:
With this PR, nodes can be assigned an IPv6 address. An IPv4 address is
preferred over an IPv6 address. IP address validation has been expanded
to check for multicast, link-local and unspecified addresses.