Add solution for 2015 Day 19

fetch.sh

@@ -13,7 +13,7 @@ for item in $list; do
     dir="res/$year/day$day/input.txt"
     if [ ! -e $dir ]; then
         webitem=${day#0}
-        echo "Fetching $dir"
+        echo "Fetching $dir from https://adventofcode.com/$year/day/$webitem/input"
         tmp_file=$(mktemp)
         HTTP_CODE=$(curl -s -w "%{http_code}" -o "$tmp_file" --cookie cookies.txt https://adventofcode.com/$year/day/$webitem/input)
         if [ "$HTTP_CODE" -eq 200 ]; then