feat(postgres): Add Bytes to Support (#3894)

* Add bytes to schema

* postgres support

* test cases

* bytes work parse object

spec/ParseObject.spec.js

@@ -1328,7 +1328,7 @@ describe('Parse.Object testing', () => {
     });
   });
 
-  it_exclude_dbs(['postgres'])("bytes work", function(done) {
+  it("bytes work", function(done) {
     Parse.Promise.as().then(function() {
       var obj = new TestObject();
       obj.set("bytes", { __type: "Bytes", base64: "ZnJveW8=" });

spec/Schema.spec.js

@@ -523,6 +523,7 @@ describe('SchemaController', () => {
       aFile: {type: 'File'},
       aPointer: {type: 'Pointer', targetClass: 'ThisClassDoesNotExistYet'},
       aRelation: {type: 'Relation', targetClass: 'NewClass'},
+      aBytes: {type: 'Bytes'},
     }))
     .then(actualSchema => {
       const expectedSchema = {
@@ -542,6 +543,7 @@ describe('SchemaController', () => {
           aFile: { type: 'File' },
           aPointer: { type: 'Pointer', targetClass: 'ThisClassDoesNotExistYet' },
           aRelation: { type: 'Relation', targetClass: 'NewClass' },
+          aBytes: {type: 'Bytes'},
         },
         classLevelPermissions: {
           find: { '*': true },