* change ip6 type to list of str and fix problem with setting addresses without netmask
* change ip6 type to list of str and fix problem with setting addresses without netmask
* Add changelog fragment
* add suggestions
* fix no mask using bug
* Make change independed from feature branch
(cherry picked from commit aae3ae1a8e)
Co-authored-by: Alex Groshev <38885591+haddystuff@users.noreply.github.com>