app: added simple switch with openflow 1.5 support
app: added simple switch with openflow 1.5 support

Signed-off-by: Thomas Boros <ae7f0817265aca1f72d4b2873480095a94859e17@gmail.com>
Signed-off-by: FUJITA Tomonori <93dac1fe9c4b2a3957982200319981492ad4976e@lab.ntt.co.jp>

iwaseyusuke/ryu,fujita/ryu,iwaseyusuke/ryu,osrg/ryu,fujita/ryu,fujita/ryu,osrg/ryu,fujita/ryu,lagopus/ryu-lagopus-ext,osrg/ryu,lagopus/ryu-lagopus-ext,iwaseyusuke/ryu,lagopus/ryu-lagopus-ext,lagopus/ryu-lagopus-ext,osrg/ryu,iwaseyusuke/ryu,fujita/ryu,lagopus/ryu-lagopus-ext,osrg/ryu,iwaseyusuke/ryu