feat: adding reposync wrapper and tooling

- 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

site/profiles/templates/reposync/repo_conf.erb

@@ -0,0 +1,8 @@
+# <%= @osname %>-<%= @release %>-<%= @repository %> repository configuration
+REPOSITORY="<%= @repository %>"
+REPONAME="<%= @repos_name %>"
+OSNAME="<%= @osname %>"
+RELEASE="<%= @release %>"
+ARCH="<%= @arch %>"
+BASEPATH="<%= @basepath %>"
+GPGKEYURL="<%= @gpgkey %>"