v0.3.0

What's Changed

• Add no std support

Add:

• smoltcp example to provide with overview on how to deal with custom TCP/IP stack in no_std environment
• functions sntp_send_request and sntp_process_response to allow library to work in an environment where the get_time call is not possible. E.g. smoltcp requires to poll underlying interface explicitly to send TX buffers to/receive data into RX buffers - in that case the get_time returns error, since data is not ready after sending

Update:

• rename request_with_addr function to get_time

Fix:

• offset and roundtrip metrics calculation
• request timestamp packing

Remove:

• timesync binary and move it as an example, since utils module API is rather experimental