BLE HID KEYBOARD example add END-POIT-OUT

Hi Nordic experts,

i figure out how to add the end-point-out to the BLE HID EXAMPLE and i cheched it out on linux ubuntu and  on windows 10.

It seems to work correctly.

Could you have a quick check?

Best regards,

Alberto

Test method:

Linux Ubuntu 20.04

sudo ./hidapitester --vidpid 1915/EEEE --usagePage FF00 -l 65 --open  --send-output 0x02,0x04,0x03

Windows:

.\hidapitester --vidpid 1915/EEEE --usagePage FF00 -l 65 --open  --send-output 0x02,0x04,0x03

https://devzone.nordicsemi.com/f/nordic-q-a/57856/ble-hid-mouse-and-ble-hid-keyboard-integration-in-the-same-program-with-nrf52-dk-need-urgent-help/366311#366311