[player] Rename interface ElementCode with Response

...les/unit-menu/components/unit-menu/unit-menu.component.ts

projects/player/modules/verona/models/verona.ts

projects/player/src/app/classes/element-code-service.ts

...ects/player/src/app/directives/element-group.directive.ts

...c/app/directives/section-visibility-handling.directive.ts

...pp/services/element-model-element-code-mapping.service.ts

...s/player/src/app/services/state-variable-state.service.ts

projects/player/src/app/services/unit-state.service.spec.ts

projects/player/src/app/services/unit-state.service.ts