chore(*): Mark Pivot interfaces as complex objects. (#14672)

Author: MayaKirova

projects/igniteui-angular/src/lib/grids/pivot-grid/pivot-grid.interface.ts

@@ -59,6 +59,7 @@ export interface IPivotDimensionStrategy {
 export type PivotAggregation = (members: any[], data: any[]) => any;
 
 /* marshalByValue */
+/* jsonAPIComplexObject */
 /**
 * Interface describing a IPivotAggregator class.
 * Used for specifying custom aggregator lists.
@@ -84,6 +85,7 @@ export interface IPivotAggregator {
 }
 
 /* marshalByValue */
+/* jsonAPIComplexObject */
 /**
 * Configuration of the pivot grid.
 */
@@ -106,6 +108,7 @@ export interface IPivotConfiguration {
 
 /* blazorElement */
 /* marshalByValue */
+/* jsonAPIComplexObject */
 /**
 * Configuration of a pivot dimension.
 */
@@ -147,6 +150,7 @@ export interface IPivotDimension {
 }
 
 /* marshalByValue */
+/* jsonAPIComplexObject */
 /**
 * Configuration of a pivot value aggregation.
 */