refacter: renamed facts to libs

modules/libs/lib/facter/mariadb_installed.rb

@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+# create boolean for if mariadb is installed based of the default service file
+Facter.add('mariadb_installed') do
+  setcode do
+    File.exist?('/usr/lib/systemd/system/mariadb.service')
+  end
+end