add find-missing helper script

#!/bin/zsh

: > missing.txt

./xml2json | fgrep missing | shuf | while read m eva x ; do

	if [[ $x != *,* ]] && db-iris -x $eva &> /dev/null; then

		echo "\n$m $eva $x"

		echo $m $eva $x >> missing.txt

	else

		echo -n .

	fi

	sleep .2

done