OZG-7473 add list component

...ng-list-item/aggregation-mapping-list-item.component.html

...list-item/aggregation-mapping-list-item.component.spec.ts

...ping-list-item/aggregation-mapping-list-item.component.ts

...tion-mapping-list/aggregation-mapping-list.component.html

...n-mapping-list/aggregation-mapping-list.component.spec.ts

...gation-mapping-list/aggregation-mapping-list.component.ts

...ib/statistik-container/statistik-container.component.html

...statistik-container/statistik-container.component.spec.ts

.../lib/statistik-container/statistik-container.component.ts

alfa-client/libs/test-utils/src/lib/helper.ts

alfa-client/libs/test-utils/src/lib/jest.helper.ts