packet_data_generator2: Add OFP13/15 Messages
packet_data_generator2: Add OFP13/15 Messages

Add the following OFP13/15 Messages.

 - OFP13/15 Symmetric Messages
 - OFP13/15 Asynchronous Messages
 - OFP15 Multipart Messages
 - OFP15 Packet-Out Message
 - OFP15 Barrier Message
 - OFP15 Role Request Message
 - OFP15 Set Asynchronous Configuration Message
 - OFP13/15 TableMod message
 - OFP13 PortMod message
 - OFP13/15 MeterMod message

Signed-off-by: Minoru TAKAHASHI <1b2dd9db86d9aa32ea109f1bd7f72bf49e90d10b@gmail.com>
Signed-off-by: IWASE Yusuke <bb80e84cc9f5a8f01385872ee89032beb5d4eba7@gmail.com>
Signed-off-by: FUJITA Tomonori <93dac1fe9c4b2a3957982200319981492ad4976e@lab.ntt.co.jp>

pichuang/ryu,iwaseyusuke/ryu,TakeshiTseng/ryu,shinpeimuraoka/ryu,Tejas-Subramanya/RYU_MEC,hisaharu/ryu,habibiefaried/ryu,shinpeimuraoka/ryu,fujita/ryu,zangree/ryu,fkakuma/ryu,Zouyiran/ryu,habibiefaried/ryu,takahashiminoru/ryu,TakeshiTseng/ryu,fujita/ryu,fujita/ryu,takahashiminoru/ryu,takahashiminoru/ryu,iwaseyusuke/ryu,fkakuma/ryu,zangree/ryu,Zouyiran/ryu,ttsubo/ryu,hisaharu/ryu,lagopus/ryu-lagopus-ext,lagopus/ryu-lagopus-ext,Tejas-Subramanya/RYU_MEC,lagopus/ryu-lagopus-ext,fujita/ryu,ttsubo/ryu,habibiefaried/ryu,lagopus/ryu-lagopus-ext,osrg/ryu,alanquillin/ryu,OpenState-SDN/ryu,TakeshiTseng/ryu,TakeshiTseng/ryu,zangree/ryu,ttsubo/ryu,alanquillin/ryu,OpenState-SDN/ryu,osrg/ryu,gareging/SDN_Framework,Tejas-Subramanya/RYU_MEC,pichuang/ryu,Zouyiran/ryu,shinpeimuraoka/ryu,habibiefaried/ryu,osrg/ryu,OpenState-SDN/ryu,lagopus/ryu-lagopus-ext,fkakuma/ryu,hisaharu/ryu,Tejas-Subramanya/RYU_MEC,gareging/SDN_Framework,takahashiminoru/ryu,fujita/ryu,gareging/SDN_Framework,alanquillin/ryu,ttsubo/ryu,iwaseyusuke/ryu,Tejas-Subramanya/RYU_MEC,hisaharu/ryu,pichuang/ryu,osrg/ryu,pichuang/ryu,habibiefaried/ryu,ttsubo/ryu,shinpeimuraoka/ryu,fkakuma/ryu,fkakuma/ryu,TakeshiTseng/ryu,iwaseyusuke/ryu,takahashiminoru/ryu,Zouyiran/ryu,osrg/ryu,Zouyiran/ryu,hisaharu/ryu,alanquillin/ryu,iwaseyusuke/ryu,OpenState-SDN/ryu,OpenState-SDN/ryu,pichuang/ryu,zangree/ryu,gareging/SDN_Framework,gareging/SDN_Framework,shinpeimuraoka/ryu,zangree/ryu,alanquillin/ryu