Add initial containerd *Client

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

client_windows.go

@@ -0,0 +1,16 @@
+package containerd
+
+import (
+	"net"
+	"time"
+
+	winio "github.com/Microsoft/go-winio"
+)
+
+func dialer(address string, timeout time.Duration) (net.Conn, error) {
+	return winio.DialPipe(bindAddress, &timeout)
+}
+
+func dialAddress(address string) string {
+	return address
+}