Vertical relation first commit

entries/static/entries/js/entries.js

entries/templates/entries_base.html

entries/templates/vertical_relations.html

entries/urls.py

entries/views.py

...nents/unification/vertical_relations/VerticalRelation.vue

...s/unification/vertical_relations/VerticalRelationEdit.vue

...nification/vertical_relations/VerticalRelationElement.vue

...nification/vertical_relations/VerticalRelationPreview.vue

...fication/vertical_relations/VerticalRelationRightPane.vue

frontend/src/main.js

shellvalier/settings.py

shellvalier/urls.py

syntax/management/commands/import_tei.py

unifier/views.py

vertical_relations/__init__.py

vertical_relations/apps.py

vertical_relations/management/commands/__init__.py

...lations/management/commands/db_import_relation_entries.py

vertical_relations/models.py