Search multiple => WIP 2

client/src/app/instance/instance-routing.module.ts

client/src/app/instance/instance.reducer.ts

...-multiple/components/progress-bar-multiple.component.html

...ch-multiple/components/progress-bar-multiple.component.ts

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

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

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

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

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

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

...p/instance/search-multiple/search-multiple.component.html

...app/instance/search-multiple/search-multiple.component.ts

...src/app/instance/store/actions/search-multiple.actions.ts

client/src/app/instance/store/effects/index.ts

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

...rc/app/instance/store/reducers/search-multiple.reducer.ts

.../app/instance/store/selectors/search-multiple.selector.ts