Refactor FlowToMessage.h
Refactor MessageToFlowMatch.c
Refactor PacketInfo.c part 1
Refactor PacketInfo.c part 1
Refactor PacketInfo.c part 2: macros
reorder fields in macros in PacketInfo.c
Move GetPacketContextFromPIArgs from MessageToFlowMatch -> PacketInfo
Modify OVS_FOR_EACH_ARG

Allow specifying name for pArg and argType
Move OVS_PARSE_ARGS_QUICK from ArgVerification to Argument.h
Refactor GetPacketContextFromPIArgs
Rename and move GetIpv4TunnelFromArgumentsSimple

Rename to _SetAction_CreateIpv4TunnelFromArg
Move from PacketInfo to Actions.c