change the default wait and poll intervals

I don't see a reason to wait 5 seconds. We could poll more often and make default operations faster.
This also reduces the acceptance tests runtime on my machine from 10m to 2m.

Author: dmacvicar

libvirt/timeout.go

@@ -6,6 +6,6 @@ import (
 
 const (
 	resourceStateTimeout    = 1 * time.Minute
-	resourceStateDelay      = 5 * time.Second
-	resourceStateMinTimeout = 3 * time.Second
+	resourceStateDelay      = 200 * time.Millisecond
+	resourceStateMinTimeout = 100 * time.Millisecond
 )