Fix issues 906, 909, 910

src/libs/convert/educationLevelBasic.js

src/libs/convert/totalDoc.js

src/libs/middlewares/aggregateData.js

src/libs/middlewares/id2str.js

src/libs/routes_v1/employeesAggregate.js

src/libs/routes_v1/enrollmentAggregate.js

src/libs/routes_v1/federativeEntity.js