Support duplication of file descriptors (IDFGH-5691)Β #7412
Description
As part of an ongoing effort to bring Rust support to Espressif chips, one requirement we found is the need for file descriptor duplication which is currently unsupported in esp-idf. We initially attempted to add it ourselves in Rust, in the standard library port - but it was rejected upstream, therefore we should aim to support it esp-idf.