Merge branch '14-publish-and-hide' into 'development'

CHANGELOG.md

...va/nl/tudelft/submit/controller/AssignmentController.java

.../tudelft/submit/dto/create/SubmitAssignmentCreateDTO.java

...submit/dto/view/labracore/SubmitAssignmentDetailsDTO.java

...submit/dto/view/labracore/SubmitAssignmentSummaryDTO.java

src/main/java/nl/tudelft/submit/model/SubmitAssignment.java

...java/nl/tudelft/submit/security/AuthorizationService.java

...ain/java/nl/tudelft/submit/service/AssignmentService.java

src/main/java/nl/tudelft/submit/service/EditionService.java

...ain/java/nl/tudelft/submit/service/SubmissionService.java

.../tudelft/submit/startup/PublishAllAssignmentsService.java

src/main/resources/application.template.yaml

src/main/resources/messages.properties

src/main/resources/migrations.yaml

src/main/resources/templates/assignment/add.html

src/main/resources/templates/assignment/top.html

src/main/resources/templates/edition/assist.html

src/main/resources/templates/edition/student.html

src/main/resources/templates/edition/view.html

src/main/resources/templates/group/view.html