Update ctr so it works again on windows

Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>

cmd/ctr/pprof_windows.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"net"
+
+	winio "github.com/Microsoft/go-winio"
+)
+
+func (d *pprofDialer) pprofDial(proto, addr string) (conn net.Conn, err error) {
+	return winio.DialPipe(d.addr, nil)
+}
+
+func getPProfDialer(addr string) *pprofDialer {
+	return &pprofDialer{"winpipe", addr}
+}