* FreeRTOS_Sockets_IPv6_utest setup and initial tests
* wip
* more tests till prv_ntop6_write_zeros
* adding more comments
* more unit tests
* covering all functions
* 100% UT coverage for IPv6_Sockets
* updating cmake file to includeew unit test and coverage
* fix formatting
* fix spell check
* fix review feedbacks
* fix review feedbacks