- add subscribe option to nginx resource dependent on nginx_listen_mode
- ensure nginx reloads when the ssl_cert or ssl_key changes, only if
these values are not undef
- ensure the file resources are defined for certificates
- add autosyncer/autopromoter scripts
- add timer and service to initial sync process
- add timer/service for daily/weekly/monthly autopromote
- add define to manage each repo
- add nginx webserver to share repos
- add favion.ico if enabled
- add selinux management, and packages for selinux
- cleanup package management, sorting package groups into package classes
