Merge branch '125-display-datasets-with-cone-search-enabled' into 'develop'

src/app/metamodel/effects/attribute.effects.ts

src/app/metamodel/selectors/dataset.selector.spec.ts

src/app/metamodel/selectors/dataset.selector.ts

...-multiple/components/datasets/dataset-list.component.html

...ltiple/components/datasets/dataset-list.component.spec.ts

...ch-multiple/components/datasets/dataset-list.component.ts

...h-multiple/components/result/datasets-result.component.ts

...p/search-multiple/components/result/overview.component.ts

...earch-multiple/components/summary-multiple.component.html

...ch-multiple/components/summary-multiple.component.spec.ts

.../search-multiple/components/summary-multiple.component.ts

src/app/search-multiple/containers/datasets.component.ts

src/app/search-multiple/containers/position.component.ts

src/app/search-multiple/store/search-multiple.effects.ts

src/settings/test-data/dataset-list.ts