ping-check-core-task-4 apply changes to parser and lexer files
New config keys must be added to parser and lexer files (*.yy, *.ll) as per ping-check design https://gitlab.isc.org/isc-projects/kea/-/wikis/Designs/ping-check
New config keys must be added to parser and lexer files (*.yy, *.ll) as per ping-check design https://gitlab.isc.org/isc-projects/kea/-/wikis/Designs/ping-check