add quarterly accum opt (#2120)

Signed-off-by: Alex Meijer <ameijer@kubecost.com>

pkg/kubecost/query.go

@@ -60,12 +60,13 @@ type AllocationQueryOptions struct {
 type AccumulateOption string
 
 const (
-	AccumulateOptionNone  AccumulateOption = ""
-	AccumulateOptionAll   AccumulateOption = "all"
-	AccumulateOptionHour  AccumulateOption = "hour"
-	AccumulateOptionDay   AccumulateOption = "day"
-	AccumulateOptionWeek  AccumulateOption = "week"
-	AccumulateOptionMonth AccumulateOption = "month"
+	AccumulateOptionNone    AccumulateOption = ""
+	AccumulateOptionAll     AccumulateOption = "all"
+	AccumulateOptionHour    AccumulateOption = "hour"
+	AccumulateOptionDay     AccumulateOption = "day"
+	AccumulateOptionWeek    AccumulateOption = "week"
+	AccumulateOptionMonth   AccumulateOption = "month"
+	AccumulateOptionQuarter AccumulateOption = "quarter"
 )
 
 // AssetQueryOptions defines optional parameters for querying an Asset Store