Add try_read_buf to net::windows::named_pipe::NamedPipeClient

[cptpiepmatz]

Is your feature request related to a problem? Please describe.
The net::TcpStream does have a try_read_buf method that takes a bytes::buf::BufMut to read data in.
The net::windows::named_pipe::NamedPipeClient is missing such method.

Describe the solution you'd like
A try_read_buf method with the same signature as the TcpStream.

Describe alternatives you've considered
Alternatively the read_buf from the io::AsyncReadExt trait may be used, that one is async, while try_read_buf usually isn't.

Additional context
@Darksonn asked me to submit this issue.

[Darksonn]

Adding this method should be relatively easy. It should be identical to the one on TcpStream.

[acalhoon]

I'm not a contributor yet but am willing to look into this

[Darksonn]

@acalhoon Go ahead and submit a PR!