Issue #44: add padronização da base de dados e de arquivos

src/db/relations/collection-like.relation.ts

src/db/relations/collection-resource.relation.ts

src/db/relations/followers.relation.ts

src/db/relations/notification.relation.ts

src/db/relations/resource-educational-stage.relation.ts

src/db/relations/resource-language.relation.ts

src/db/relations/resource-like.relation.ts

src/db/relations/resource-subject.relation.ts

src/db/relations/user-achievement.relation.ts

src/db/relations/user-institution.relation.ts

src/db/relations/user-item.relation.ts

src/db/relations/user-role.relation.ts

src/db/repo/collection-stats.repo.ts

src/db/repo/object-type.repo.ts

src/db/repo/resource-stats.repo.ts

src/db/schema/achievement.schema.ts

src/db/schema/action.schema.ts

src/db/schema/collection-stats.schema.ts

src/db/schema/collection.schema.ts

src/db/schema/complaint.schema.ts