pdns-recursor: add package

Maintainer: me

Compile tested: armv7l, OpenWRT SDK
Run tested: armv7l Linksys WRT1900ACS, OpenWrt SNAPSHOT, r9987-655fff1571 -
confirmed PowerDNS recursor links correctly against libraries and runs on my
target environment.

Description:
PowerDNS Recursor is a high-performance resolving name server, utilizing
multiple processor and including Lua scripting capabilities.

This commit includes the recursive nameserver

https://www.powerdns.com/recursor.html

Signed-off-by: James Taylor <james@jtaylor.id.au>

net/pdns-recursor/files/pdns-recursor.init

@@ -0,0 +1,14 @@
+#!/bin/sh /etc/rc.common
+START=99
+
+USE_PROCD=1
+
+start_service() {
+	[ -e /etc/powerdns/recursor.conf ] || return 1
+
+	procd_open_instance
+	procd_set_param command /usr/sbin/pdns_recursor --daemon=no
+	procd_set_param file /etc/powerdns/recursor.conf
+	procd_set_param respawn
+	procd_close_instance
+}