Add test data for a WIP bugfix

While this new test data is ready, the bug that it reproduces is not
yet fixed.  Therefore the test data has a ".wip" suffix, so it won't
be included in the default './check' run.  We'll remove that suffix
when we fix the bug.  To reproduce the bug, do

  $ ./mailaprop.py --suppress-header              \
    < test-data/bonkers-backslashes-etc.mbox.wip  \
    > foo.out

followed by `(mailaprop-reload-addresses "foo.out")' in Emacs, and you
should see an error that looks something like this:

  +: Wrong type argument: number-or-marker-p, " \
  <someone@michaellacroix.com> <levinson@domaintwo.edu>"

test-data/bonkers-backslashes-etc.mbox.wip

+From jrsender@sender.example.com Sat Dec 24 15:19:08 2011
+Message-ID: <1324752864.68726.YahooMailNeo@web36708.mail.mud.yahoo.com>
+Date: Sat, 24 Dec 2011 10:54:24 -0800 (PST)
+From: J. Random Sender <jrsender@sender.example.com>
+Subject: Wikman on WGN Radio: Time Correction
+To: "\"leifer@domainone.com\"" <leifer@domainone.com>,
+  "\"levinson@domaintwo.edu\"" <levinson@domaintwo.edu>
+Cc: "To: \"someone@michaellacroix.com\"" <someone@michaellacroix.com>,
+  "\"michael@example.com\"" <michael@example.com>,
+  "\"kfogel@example.com\"" <kfogel@example.com>,
+  "\"someone@uic.edu\"" <someone@uic.edu>,
+  "\"jrandom@gexample.com\"  Cc: \"jrandom@binnys.com\" <jrandom@binnys.com>" <jrandom@gexample.com>,
+  "\"victoria@domainthree.com\"" <victoria@domainthree.com>,
+  "\"singsbach@anotherdomain.com\"" <singsbach@anotherdomain.com>,
+  "To: \"misha@gexample.com\"" <misha@gexample.com>,
+  "\"jaaron@gexample.com\"" <jaaron@gexample.com>,
+  "\"hankam@domainone.com\"" <hankam@domainone.com>,
+  "\"jrandom108@examplehoo.com\"  Cc: \"jrandom@examplemsn.com\" <jrandom@examplemsn.com>" <jrandom108@examplehoo.com>,
+  "\"jbob@aolexample.com\"" <jbob@aolexample.com>,
+  "\"jordan@gexample.com\"" <jordan@gexample.com>
+
+This is derived from ~/mail/andrea-holliday/21.gz.  In addition to the
+backslash whackage, notice the interspersed "CC:" and "To:" strings
+*within* the actual Cc: field.  This message's recipient headers are
+indeed well and truly whacked.
+
+In both this email and the next one, I've tried to preserve the
+structure of the weirdness, while removing large numbers of addresses
+that had basically the same format (and so shouldn't make any
+difference) and pseudonymizing the rest.
+
+From jrsender@sender.example.com Thu Dec 29 20:58:14 2011
+Message-ID: <1325207237.36447.YahooMailNeo@web36707.mail.mud.yahoo.com>
+Date: Thu, 29 Dec 2011 17:07:17 -0800 (PST)
+From: J. Random Sender <jrsender@sender.example.com>
+Subject: On Demand: Wikman Christmas Podcast 
+To: "\"\"jdolly@sbcglobal.net\"\"" <jdolly@sbcglobal.net>,
+  "\"\"jkozolek@someacademy.com\" Cc: \"jviola@sbcglobal.net\" \" <jkozolek@someacademy.com>" <jviola@sbcglobal.net>,
+  "\"\"leifer@mac.com\"\"" <leifer@mac.com>,
+  "\"\"levinson@domaintwo.edu\"\"  Cc: \"To: \"someone@michaellacroix.com\"\" <someone@michaellacroix.com>" <levinson@domaintwo.edu>,
+  "\"\"kfogel@example.com\"\"" <kfogel@example.com>,
+  "\"\"someone@uic.edu\"\"" <someone@uic.edu>,
+  "\"\"jrandom@gexample.com\" Cc: \"jrandom@binnys.com\" \" <jrandom@gexample.com>" <jrandom@binnys.com>,
+  "\"\"singsbach@anotherdomain.com\"\"" <singsbach@anotherdomain.com>,
+  "\"To: \"misha@gexample.com\"\"" <misha@gexample.com>,
+  "\"\"jaaron@gexample.com\"\"" <jaaron@gexample.com>,
+  "\"\"hankam@domainone.com\"\"" <hankam@domainone.com>,
+  "\"\"jrandom108@examplehoo.com\" Cc: \"jrandom@examplemsn.com\" \" <jrandom108@examplehoo.com>" <jrandom@examplemsn.com>,
+  "\"\"jbob@aolexample.com\"\"" <jbob@aolexample.com>,
+  "\"\"jordan@gexample.com\"\"" <jordan@gexample.com>
+Cc: j j <jarvis@examplecast.com>, j miller <jmiller@examplecast.com>
+
+This is derived from ~/mail/andrea-holliday/23.gz.  In addition to the
+sharing all the whackage of the previous message, this one also has
+that weird standalone \" on the second line of the To: header.  That's
+why I included this message in addition to the previous one.