added getSocket proc (#11233)

lib/pure/httpclient.nim

@@ -640,6 +640,21 @@ proc close*(client: HttpClient | AsyncHttpClient) =
     client.socket.close()
     client.connected = false
 
+proc getSocket*(client: HttpClient): Socket  =
+  ## Get network socket, useful if you want to find out more details about the connection
+  ##
+  ## this example shows info about local and remote endpoints
+  ##
+  ## .. code-block:: Nim
+  ##   if client.connected:
+  ##     echo client.getSocket.getLocalAddr  
+  ##     echo client.getSocket.getPeerAddr
+  ##
+  return client.socket
+
+proc getSocket*(client: AsyncHttpClient): AsyncSocket  =
+  return client.socket
+
 proc reportProgress(client: HttpClient | AsyncHttpClient,
                     progress: BiggestInt) {.multisync.} =
   client.contentProgress += progress