Improving session filtering capabilities of
show nat44 sessions CLI command for EI and ED NAT
plugins. Adding filtering options: saddr, sport,
daddr, dport, proto for both i2o and o2i flows.
Type: improvement
Change-Id: I70bc94a2e922cddf9451eb7dcbf4a7be21ebf0df Signed-off-by: Filip Varga <fivarga@cisco.com>