USB-USB Converter with report including multiple event

[tmk]

USB converter doesn't work with TMK keyboard and has problem on handling report when it includes multiple change in a report. https://geekhack.org/index.php?topic=69169.msg2284605#msg2284605

For example, On TMK keyboard oneshot shift + m yields two keys in a report like:

keyboard: 00 00 00 00 00 00 00 00 
keyboard: 02 00 10 00 00 00 00 00
keyboard: 00 00 00 00 00 00 00 00 

while the converter conveys the two keys to host like;

keyboard_report: 00 00 10 00 00 00 00 00 
keyboard_report: 02 00 10 00 00 00 00 00
keyboard_report: 02 00 00 00 00 00 00 00 
keyboard_report: 00 00 00 00 00 00 00 00 

you get m not `M' on host in result.

[tmk]

This does not seem to be problem of USB-USB converter.

Also Oneshot implementation should be fixed perhaps.