Allow tuning Common-controller Ratelimiter with retryIntervalStart & retryIntervalMax

This patch adds two new parameters `retryIntervalStart & retryIntervalMax`
which can be configured to adjust the ratelimiters of snapshotqueue and contentqueue
in the controller.

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>

```release-note
 `retry-interval-start` and `retry-interval-max` arguments are added to common-controller
  which controls retry interval of failed volume snapshot creation and deletion.
  These values set the ratelimiter for snapshot and content queues.
```

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>

pkg/common-controller/framework_test.go

@@ -19,6 +19,7 @@ package common_controller
 import (
 	"errors"
 	"fmt"
+	"k8s.io/client-go/util/workqueue"
 	"reflect"
 	sysruntime "runtime"
 	"strconv"
@@ -749,6 +750,8 @@ func newTestController(kubeClient kubernetes.Interface, clientset clientset.Inte
 		coreFactory.Core().V1().PersistentVolumeClaims(),
 		metricsManager,
 		60*time.Second,
+		workqueue.NewItemExponentialFailureRateLimiter(1*time.Millisecond, 1*time.Minute),
+		workqueue.NewItemExponentialFailureRateLimiter(1*time.Millisecond, 1*time.Minute),
 	)
 
 	ctrl.eventRecorder = record.NewFakeRecorder(1000)