Laid out concept for UdpSocket init

src/udp/mod.rs

@@ -1,5 +1,12 @@
 use crate::socket::Socket;
 
 pub struct UdpSocket<SocketImpl: Socket> {
-    pub socket: SocketImpl,
+    socket: SocketImpl,
+}
+
+impl<SocketImpl: Socket> UdpSocket<SocketImpl> {
+	pub fn new(socket: SocketImpl) -> Self {
+		// TODO initialize socket for UDP mode
+		UdpSocket { socket }
+	}
 }