Move 1988-2004 entries into subdirs

We we move 1988-2004 entries from all of a year's winning entries
in a single directory to each winner being in their own sub-directory
under the given year directory.

1992/adrian/adrian.grep.5

@@ -0,0 +1,4 @@
+    <q0> ab <q1>
+    <q1> cd <q2>
+    <q2> ef [q3]
+    [q3]