wmediumd needs to improve performance and out-of-order frames

[jcard0na]

sudo wmediumd -c noloss.cfg 
# then
$ iperf -c 192.168.77.10 -u -b 2G -t 1
------------------------------------------------------------
Client connecting to 192.168.77.10, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size:  124 KByte (default)
------------------------------------------------------------
[  3] local 192.168.77.11 port 53694 connected with 192.168.77.10 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0- 1.0 sec  97.9 MBytes   814 Mbits/sec
[  3] Sent 69804 datagrams
[  3] Server Report:
[  3]  0.0- 1.5 sec   227 KBytes  1.23 Mbits/sec  19.470 ms 69645/69803 (1e+02%)
[  3]  0.0- 1.5 sec  37 datagrams received out-of-order

Compare to iperf over hwsim, without wmediumd:

$iperf -c 192.168.77.10 -u -b 2G -t 1
------------------------------------------------------------
Client connecting to 192.168.77.10, UDP port 5001
Sending 1470 byte datagrams
UDP buffer size:  124 KByte (default)
------------------------------------------------------------
[  3] local 192.168.77.11 port 58893 connected with 192.168.77.10 port 5001
[ ID] Interval       Transfer     Bandwidth
[  3]  0.0- 1.0 sec  97.3 MBytes   817 Mbits/sec
[  3] Sent 69439 datagrams
[  3] Server Report:
[  3]  0.0- 1.0 sec  95.6 MBytes   802 Mbits/sec   0.000 ms 1228/69438 (1.8%)
[  3]  0.0- 1.0 sec  1 datagrams received out-of-order