Move non compiled libraries from /lib/rc to /libexec/rc

OpenRC version is now stored as plaintext in /libexec/rc/version

Plugins (cursplash, splashutils) will have to be re-compiled to pickup
the new directories. State data needs to be moved from /lib/rc/init.d
to /libexec/rc/init.d as well.

net/Makefile

@@ -1,4 +1,4 @@
-DIR=	${PREFIX}/${RC_LIB}/net
+DIR=	${LIBEXECDIR}/net
 SRCS=	ifconfig.sh.in
 INC=	dhclient.sh dhcpcd.sh ifconfig.sh macchanger.sh macnet.sh \
 	ssidnet.sh system.sh wpa_supplicant.sh

net/ifwatchd.sh

@@ -33,8 +33,8 @@ ifwatchd_pre_start()
 	# Start ifwatchd
 	export IN_BACKGROUND=yes
 	start-stop-daemon --start --exec /usr/sbin/ifwatchd \
-		-- -c "${RC_LIBDIR}/sh/ifwatchd-carrier.sh" \
-		-n "${RC_LIBDIR}/sh/ifwatchd-nocarrier.sh" "${IFACE}"
+		-- -c "${RC_LIBEXECDIR}/sh/ifwatchd-carrier.sh" \
+		-n "${RC_LIBEXECDIR}/sh/ifwatchd-nocarrier.sh" "${IFACE}"
 	unset IN_BACKGROUND
 	eend "$?" || return 1
 
@@ -47,13 +47,13 @@ ifwatchd_stop()
 	yesno ${IN_BACKGROUND} && return 0
 
 	start-stop-daemon --test --quiet --stop --exec /usr/sbin/ifwatchd \
-		-- -c "${RC_LIBDIR}/sh/ifwatchd-carrier.sh" \
-		-n "${RC_LIBDIR}/sh/ifwatchd-nocarrier.sh" "${IFACE}" \
+		-- -c "${RC_LIBEXECDIR}/sh/ifwatchd-carrier.sh" \
+		-n "${RC_LIBEXECDIR}/sh/ifwatchd-nocarrier.sh" "${IFACE}" \
 		|| return 0
 	
 	ebegin "Stopping ifwatchd on" "${IFACE}"
 	start-stop-daemon --stop --exec /usr/sbin/ifwatchd \
-		-- -c "${RC_LIBDIR}/sh/ifwatchd-carrier.sh" \
-		-n "${RC_LIBDIR}/sh/ifwatchd-nocarrier.sh" "${IFACE}"
+		-- -c "${RC_LIBEXECDIR}/sh/ifwatchd-carrier.sh" \
+		-n "${RC_LIBEXECDIR}/sh/ifwatchd-nocarrier.sh" "${IFACE}"
 	eend $?
 }

net/udhcpc.sh

@@ -68,7 +68,7 @@ udhcpc_start()
 			;;
 	esac
 
-	local script="${RC_LIBDIR}"/sh/udhcpc.sh
+	local script="${RC_LIBEXECDIR}"/sh/udhcpc.h
 	[ -x "${script}" ] || script=/lib/rcscripts/sh/udhcpc.sh
 
 	eval "${x}" "${args}" --interface="${IFACE}" --now \