TCP Server not working with files inputData when using directories

[adlrocha]

The files.ToFile() function in tcp.goonly works when the input is a file, not a directory. We need to include additional logic so when a directory is detected, we generate it from the received fileNode. The files configuration will work when inside the directory there are only files but not directories.

https://github.com/adlrocha/beyond-bitswap/blob/develop/testbed/utils/tcp.go#L104