Merge branch '124-admin-option-for-search-module' into 'develop'

CHANGELOG.md

src/app/core/components/nav.component.html

src/app/core/components/nav.component.spec.ts

src/app/core/containers/app.component.spec.ts

src/app/core/containers/app.component.ts

src/app/metamodel/action/instance.action.spec.ts

src/app/metamodel/reducers/instance.reducer.spec.ts

src/app/metamodel/reducers/instance.reducer.ts

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

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