* feat: Added new ipv6 field to cns state

* added UTs for addition of ipv6 to cns

* linter fix

* fix: removed unnecessary require shadowing

* fix: refactored converTo... function to make code more compact

* fix: Added ipv4 verification in UT

* fix: reused existent mock io shim

* fix: extended and reused existent logic for test initialization

* fix: updated code to not depend on array order

* fix: updated existent test and removed new redundant test

* fix: updated test errors

* fix: fixed added tests