Add source route o pibpercapita

src/libs/routes/pibpercapita.js

@@ -37,6 +37,13 @@ pibpercapitaApp.get('/years', (req, res, next) => {
     next();
 }, query, response('years'));
 
+pibpercapitaApp.get('/source', (req, res, next) => {
+    req.sql.from('fonte')
+    .field('fonte', 'source')
+    .where('tabela = \'ibge_pib\'');
+    next();
+}, query, response('source'));
+
 pibpercapitaApp.get('/income_level', (req, res, next) => {
     req.result = [
         {id: 1, name: "1º quintil – 20% menores"},