Merge branch 'develop' into 87-quality-improvment

src/app/detail/components/object-display.component.spec.ts

src/app/metamodel/model/attribute.model.ts

src/app/metamodel/model/index.ts

src/app/metamodel/model/renderer-config.model.ts

src/app/search/components/result/datatable.component.html

src/app/search/components/result/datatable.component.spec.ts

src/app/search/components/result/datatable.component.ts

src/app/search/components/result/renderer/btn.component.html

src/app/search/components/result/renderer/btn.component.ts

...p/search/components/result/renderer/detail.component.html

...earch/components/result/renderer/detail.component.spec.ts

...app/search/components/result/renderer/detail.component.ts

...search/components/result/renderer/download-component.html

...p/search/components/result/renderer/download-component.ts

...search/components/result/renderer/download.component.html

...rch/components/result/renderer/download.component.spec.ts

...p/search/components/result/renderer/download.component.ts

...pp/search/components/result/renderer/image.component.html

...search/components/result/renderer/image.component.spec.ts

src/app/search/components/result/renderer/image.component.ts