finished docs and tests

...edit-in-place-field/edit-in-place-field.component.spec.ts

...t-item-page/item-metadata/item-metadata.component.spec.ts

...e/edit-item-page/item-metadata/item-metadata.component.ts

src/app/core/eperson/models/eperson.model.ts

src/app/core/shared/dspace-object.model.ts

src/app/core/shared/metadata.models.ts

src/app/core/shared/metadata.utils.spec.ts

src/app/core/shared/metadata.utils.ts

.../shared/comcol-forms/comcol-form/comcol-form.component.ts