Subcommand 'route' can now corrupt packets.

[maxsharabayko]

Corrupt Every 10th Packet.

./srt-xtransmit route -i "udp://127.0.0.1:4200" -o "udp://127.0.0.1:5201?bind=:5200" --bidir --corruptpkt 10

Corrupt a Packet Every 1s.

./srt-xtransmit route -i "udp://127.0.0.1:4200" -o "udp://127.0.0.1:5201?bind=:5200" --bidir --corruptfreq 1s

Note that corrupting a packet by timeout (--corruptfreq 1s) starts right after the route is initiated.
If the very first packet arrives later than 1 second after that, it will be 100% corrupted.