add needed files

this fixes #167

configs/releng/airootfs/etc/systemd/system/pacmanbeeper.service

+[Unit]
+Description=Play pacman tune
+# for playing alert tunes via the built-in PC speaker (KDMKTONE, KIOCSOUND)
+Wants=modprobe@pcspkr.service
+After=modprobe@pcspkr.service
+
+[Service]
+User=beep
+Type=oneshot
+ExecStart=/usr/local/bin/pacman-beep.sh
+
+[Install]
+WantedBy=sound.target

configs/releng/airootfs/etc/systemd/system/sound.target.wants/pacmanbeeper.service

+../pacmanbeeper.service
\ No newline at end of file

configs/releng/airootfs/etc/sysusers.d/beep.conf

+#Type Name ID GECOS    Home directory Shell
+u     beep -  beepuser -              -

configs/releng/airootfs/etc/udev/rules.d/90-pcspkr-beep.rules

+# Add write access to the PC speaker for the "beep" group
+ACTION=="add", SUBSYSTEM=="input", ATTRS{name}=="PC Speaker", ENV{DEVNAME}!="", RUN+="/usr/bin/setfacl -m u:beep:w '$env{DEVNAME}'"

configs/releng/airootfs/usr/local/bin/pacman-beep.sh

+#!/bin/sh
+# I think I converted this from a wav using https://github.com/tomas-teijeiro/wavtobeep
+beep -l 100 -f 15804.2656402 -n -l 25 -f 19.4454364826 -n -l 25 -f 123.470825314 -n -l 50 -f 554.365261954 -n -l 75 -f 138.591315488 -n -l 75 -f 1108.73052391 -n -l 50 -f 19.4454364826 -n -l 75 -f 783.990871963 -n -l 50 -f 19.4454364826 -n -l 75 -f 698.456462866 -n -l 50 -f 195.997717991 -n -l 25 -f 184.997211356 -n -l 50 -f 1108.73052391 -n -l 75 -f 783.990871963 -n -l 100 -f 138.591315488 -n -l 25 -f 155.563491861 -n -l 150 -f 698.456462866 -n -l 125 -f 195.997717991 -n -l 50 -f 554.365261954 -n -l 25 -f 587.329535835 -n -l 50 -f 138.591315488 -n -l 75 -f 1108.73052391 -n -l 50 -f 19.4454364826 -n -l 75 -f 880.0 -n -l 25 -f 38.8908729653 -n -l 25 -f 19.4454364826 -n -l 75 -f 739.988845423 -n -l 75 -f 220.0 -n -l 75 -f 1108.73052391 -n -l 50 -f 880.0 -n -l 25 -f 19.4454364826 -n -l 75 -f 138.591315488 -n -l 25 -f 123.470825314 -n -l 150 -f 739.988845423 -n -l 125 -f 220.0 -n -l 75 -f 554.365261954 -n -l 50 -f 138.591315488 -n -l 75 -f 1108.73052391 -n -l 25 -f 1046.5022612 -n -l 25 -f 1108.73052391 -n -l 25 -f 19.4454364826 -n -l 50 -f 783.990871963 -n -l 25 -f 830.60939516 -n -l 25 -f 19.4454364826 -n -l 25 -f 622.253967444 -n -l 75 -f 698.456462866 -n -l 50 -f 195.997717991 -n -l 25 -f 155.563491861 -n -l 50 -f 1108.73052391 -n -l 75 -f 783.990871963 -n -l 100 -f 138.591315488 -n -l 25 -f 19.4454364826 -n -l 125 -f 698.456462866 -n -l 150 -f 195.997717991 -n -l 50 -f 622.253967444 -n -l 75 -f 698.456462866 -n -l 75 -f 739.988845423 -n -l 25 -f 19.4454364826 -n -l 25 -f 38.8908729653 -n -l 125 -f 739.988845423 -n -l 100 -f 783.990871963 -n -l 25 -f 19.4454364826 -n -l 75 -f 783.990871963 -n -l 150 -f 880.0 -n -l 50 -f 19.4454364826 -n -l 125 -f 1108.73052391 -n -l 75 -f 261.625565301 -n -l 25 -f 277.182630977 -n -l 25 -f 261.625565301

configs/releng/packages.x86_64

@@ -4,6 +4,7 @@ arch-install-scripts
 archinstall
 b43-fwcutter
 base
+beep
 bind-tools
 brltty
 broadcom-wl

configs/releng/profiledef.sh

@@ -20,4 +20,5 @@ file_permissions=(
   ["/usr/local/bin/choose-mirror"]="0:0:755"
   ["/usr/local/bin/Installation_guide"]="0:0:755"
   ["/usr/local/bin/livecd-sound"]="0:0:755"
+  ["/usr/local/bin/pacman-beep.sh"]="0:0:755"
 )