Tuomas Taipale

Add new -C option for configuring packet transmit completion. Both poll and event completions are supported at least partially: event completion is currently supported only with scheduled queues. Transmit completion...

Add a few improvements: - rename `CMD_STATS` to `CMD_SUMMARY` to reflect its intended purpose - improve stdin command parsing formatting - fix stream disabling v2: - Rebased

Use correct name when referring to `odp_packet_tx_compl_request()`.

Parse ODP helper options to enable possibility to choose ODP thread memory model.