log_printf()/cprintf() over USB2 HS / USB3 SS

[Benjamin Vernoux]

Is your feature request related to a problem? Please describe.

• Add option to send log_printf()/cprintf() over USB2 HS or USB3 SS (active link available)
  • See https://github.com/hydrausb3/hydrausb3_fw/blob/main/HydraUSB3_USB/User/usb_cmd.c#L47