WIP: add module multiple

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

src/app/search-multiple/containers/result.component.spec.ts

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

src/app/search-multiple/search-multiple-routing.module.ts

src/app/search-multiple/search-multiple.module.ts

src/app/search-multiple/store/search-multiple.action.spec.ts

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

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

...app/search-multiple/store/search-multiple.reducer.spec.ts

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

...pp/search-multiple/store/search-multiple.selector.spec.ts

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

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

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

src/app/search/store/search.service.ts