start systemd switch-over

- consolidate suite runlist into setup
- bugfix: correct service check start/stop commands under systemd
- bugfix: fix duplicate service notifications from monit_check resources
- remove snmpd recipe
- update the setup recipe to: install add'l services, set up non-pid-having services under systemd to have a pid, include all core-service recipes
- expand integration testing to cover all core-service checks, rootfs check