Move search component to shared module

src/app/access/access.module.ts

src/app/organizational-unit/organizational-unit.module.ts

src/app/shared/components/search/search.component.html

src/app/shared/components/search/search.component.scss

src/app/shared/components/search/search.component.spec.ts

src/app/shared/components/search/search.component.ts

src/app/shared/shared.module.ts