godeps: update vmware/govmomi

Update required to continue work on #64021

- The govmomi tag API changed

- Pulling in the new vapi/simulator package for testing the VCP Zones impl

vendor/github.com/vmware/govmomi/vim25/soap/debug.go

@@ -21,6 +21,7 @@ import (
 	"io"
 	"net/http"
 	"net/http/httputil"
+	"strings"
 	"sync/atomic"
 	"time"
 
@@ -69,6 +70,14 @@ func (d *debugRoundTrip) newFile(suffix string) io.WriteCloser {
 	return debug.NewFile(fmt.Sprintf("%d-%04d.%s", d.cn, d.rn, suffix))
 }
 
+func (d *debugRoundTrip) ext(h http.Header) string {
+	ext := "xml"
+	if strings.Contains(h.Get("Content-Type"), "/json") {
+		ext = "json"
+	}
+	return ext
+}
+
 func (d *debugRoundTrip) debugRequest(req *http.Request) {
 	if d == nil {
 		return
@@ -83,7 +92,7 @@ func (d *debugRoundTrip) debugRequest(req *http.Request) {
 	wc.Close()
 
 	// Capture body
-	wc = d.newFile("req.xml")
+	wc = d.newFile("req." + d.ext(req.Header))
 	req.Body = newTeeReader(req.Body, wc)
 
 	// Delay closing until marked done
@@ -104,7 +113,7 @@ func (d *debugRoundTrip) debugResponse(res *http.Response) {
 	wc.Close()
 
 	// Capture body
-	wc = d.newFile("res.xml")
+	wc = d.newFile("res." + d.ext(res.Header))
 	res.Body = newTeeReader(res.Body, wc)
 
 	// Delay closing until marked done