Search multiple overivew + count => done

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

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

...ple/components/datasets/datasets-by-family.component.html

...ple/components/datasets/datasets-by-family.component.scss

...tiple/components/datasets/datasets-by-family.component.ts

...app/instance/search-multiple/components/datasets/index.ts

client/src/app/instance/search-multiple/components/index.ts

...c/app/instance/search-multiple/components/result/index.ts

...search-multiple/components/result/overview.component.html

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

...multiple/containers/abstract-search-multiple.component.ts

...stance/search-multiple/containers/datasets.component.html

...instance/search-multiple/containers/datasets.component.ts

...stance/search-multiple/containers/position.component.html

...instance/search-multiple/containers/position.component.ts

...search-multiple/containers/result-multiple.component.html

...e/search-multiple/containers/result-multiple.component.ts

...nstance/search-multiple/search-multiple-routing.module.ts

...search/components/criteria/cone-search-tab.component.html

...nt/src/app/instance/search/containers/result.component.ts