feat(custom): add graphWidgetSetPeriodToTimeRange (#482)

Corresponds with `setPeriodToTimeRange` from
[GraphWidgetProps](https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_cloudwatch.GraphWidgetProps.html):
> Whether to show the value from the entire time range. Only applicable
for Bar and Pie charts.

Closes #449

---

_By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache-2.0 license_

Author: Eugene Cheung

API.md

@@ -169,6 +169,10 @@ export interface CustomMetricGroup {
    * @default BOTTOM
    */
   readonly graphWidgetLegend?: LegendPosition;
+  /**
+   * @see {GraphWidgetProps.setPeriodToTimeRange}
+   */
+  readonly graphWidgetSetPeriodToTimeRange?: boolean;
   /**
    * @deprecated use addToSummaryDashboard. addToSummaryDashboard will take precedence over important.
    * @see addToSummaryDashboard
@@ -409,6 +413,8 @@ export class CustomMonitoring extends Monitoring {
         leftYAxis: annotatedGroup.metricGroup.graphWidgetAxis,
         rightYAxis: annotatedGroup.metricGroup.graphWidgetRightAxis,
         legendPosition: annotatedGroup.metricGroup.graphWidgetLegend,
+        setPeriodToTimeRange:
+          annotatedGroup.metricGroup.graphWidgetSetPeriodToTimeRange,
       };
 
       const widget = useAnomalyDetectionWidget

lib/monitoring/custom/CustomMonitoring.ts

@@ -107,6 +107,7 @@ test("snapshot test", () => {
       {
         title: "DummyGroup3",
         graphWidgetType: GraphWidgetType.PIE,
+        graphWidgetSetPeriodToTimeRange: true,
         metrics: [
           // regular metric
           new Metric({ metricName: "DummyMetric20", namespace, dimensionsMap }),