[Feature] Show progress during find $DOMAIN in postwget

[ilyaigpetrov]

find $DOMAIN -type f \( -name '*.htm*' -or -name '*.php*' \) -exec "$iterscript" "$DOMAIN" '{}' "$EXTERNALURLS" "$WGETREJECT" "$NOOVERREACH" -not -path "./$DOMAIN/wget-2-zim-overreach/*" \;:

wget-2-zim/wget-2-zim.sh

Line 209 in 6f83e11

find $DOMAIN -type f \( -name '*.htm*' -or -name '*.php*' \) -exec "$iterscript" "$DOMAIN" '{}' "$EXTERNALURLS" "$WGETREJECT" "$NOOVERREACH" -not -path "./$DOMAIN/wget-2-zim-overreach/*" \;

This line produces no debug output and takes about 3 hours to complete in my case.
I suggest adding some hints for a user about progress of this task.