flow_export Directory Reference

Files
	flow_export.cpp
	NetFlow v5 / v9 + IPFIX exporter codec (pure, host-tested).
	flow_export.h
	Flow-record export codec (DETWS_ENABLE_FLOW_EXPORT) - zero-heap exporter-side builders for NetFlow v5, NetFlow v9 (RFC 3954), and IPFIX (RFC 7011), so a device can ship on-device flow accounting to a collector over the existing UDP transport.