add database file 'dbname'

'dbname' is produced by jeopardy_prototype.py when testing
Signed-off-by: sunzhichuang <1017665057@qq.com>
add file 'produceXML.py' :producing data

Signed-off-by: sunzhichuang <1017665057@qq.com>
add test file 'test_jeopardy.py'

Signed-off-by: sunzhichuang <1017665057@qq.com>