init timeout

[xCENTx]

This pull request introduces a small but important change to the kmNet_init function in the kmboxNet.cpp file to improve network communication reliability. Specifically, it sets a timeout for receiving data on the socket. This prevents any application using the KMNet library from encountering a threadlock due to a device connection failing.

• kmboxNet.cpp: Added a SO_RCVTIMEO socket option to set a 3-second timeout for receiving data, ensuring the function does not hang indefinitely if no response is received.

[ZCban]

I have never had any missed responses with the initialization when that event occurs to you?

[xCENTx]

I have never had any missed responses with the initialization when that event occurs to you?

If one were to call kmNet_init with incorrect parameters or the device is not detected the function will fail to return as it hangs on err = recvfrom(sockClientfd, (char*)&rx, 1024, 0, (struct sockaddr*)&addrSrv, &clen);