Print Necessary Metrics at end of Simulation

[slichtenheld]

• [ ] calculate individual UE packet loss
• [ ] calculate individual UE avg handover delay
• [ ] calculate overall UE packet loss
• [x] calculate overall handover delays

[khaledhassan]

(real) packet loss = num packets sent - packets received packets lost as reported by the UDPServer only include sequence numbers that were expected but never received, not any later packets -- in other words, it can only figure this out based on the sequence number of the last packet that was successfully received, not the last sequence number that was sent from the source

We have to see whether the UDP(Trace)Client has a way of checking how many packets were sent