Add multi-gzip puzzle

games/compaq/multigzip/build.sh

@@ -0,0 +1,14 @@
+#! /bin/sh
+
+key='PC LOAD LETTER'
+lorem='Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc fermentum magna ut posuere.'
+
+echo -n "$key" | gzip | split -b 1
+rm -f multi.gz
+for i in x??; do 
+    nfn=$(xxd -c 256 -p $i)
+    echo -n "$lorem" > $nfn
+    gzip -c -N $nfn >> multi.gz
+    rm $nfn
+    rm $i
+done

puzzles/compaq/200/key

@@ -0,0 +1 @@
+PC LOAD LETTER