blacklistd: add basic configuration

files/blacklistd

+blacklistd_enable="YES"
+sshd_flags="-o UseBlacklist=yes"

manifests/blacklistd.pp

+#
+class freebsd::blacklistd {
+  file { '/etc/rc.conf.d/blacklistd':
+    ensure => file,
+    source => 'puppet:///modules/freebsd/blacklistd',
+    owner  => 'root',
+    group  => 'wheel',
+    mode   => '0644',
+  }
+  file { '/etc/ipfw-blacklistd.rc':
+    content => '',
+    owner   => 'root',
+    group   => 'wheel',
+    mode    => '0644',
+  }
+}