refs #5513 adding backs and models

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+CREATE TABLE `vn`.`buyConfig` (
+    `id` int(11) NOT NULL AUTO_INCREMENT,
+    `showLastBuy` int(11) NOT NULL DEFAULT 6 COMMENT 'Meses desde la última compra',

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+                    JOIN vn.travel t ON t.id = e.travelFk
+                    LEFT JOIN entryTmp et ON et.id = i.id
+                WHERE e.supplierFk = ?
+                    AND (i.family ='EMB' OR i.family = 'CONT')

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+
+module.exports = Self => {
+    Self.remoteMethodCtx('addFromBuy', {
+        description: 'Modify a field of a buy or creates a new one with default values',

@@ -0,0 +21,4 @@
+        });
+    });
+
+    it('should create a receipt travel', async() => {

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+const app = require('vn-loopback/server/server');
+
+describe('Supplier getItemsPackaging()', () => {
+    it('should return a summary the list of items from a determinate supplier', async() => {