feat(queue): export the job queue constructor (#134)

Author: reugn

quartz/queue.go

@@ -137,8 +137,8 @@ type jobQueue struct {
 
 var _ JobQueue = (*jobQueue)(nil)
 
-// newJobQueue initializes and returns an empty jobQueue.
-func newJobQueue() *jobQueue {
+// NewJobQueue initializes and returns an empty jobQueue.
+func NewJobQueue() JobQueue {
 	return &jobQueue{
 		delegate: priorityQueue{},
 	}

quartz/scheduler.go

@@ -149,7 +149,7 @@ func NewStdSchedulerWithOptions(
 	jobQueueMtx sync.Locker,
 ) *StdScheduler {
 	if jobQueue == nil {
-		jobQueue = newJobQueue()
+		jobQueue = NewJobQueue()
 	}
 	if jobQueueMtx == nil {
 		jobQueueMtx = &sync.Mutex{}