Optimization - Improve escape strategy to avoid escape for non-escape properties

[korzio]

Now

Given a schema with properties with no-escape symbols
When validate function is called with instance
Then the escape strategy adds decode/encode calls
Then the unnecessary calls are made during the runtime

tpl(if (${tpl.data}.hasOwnProperty(decodeURIComponent("${encodeURIComponent(propertyKey)}"))) {);

Should be

Given a schema with properties with no-escape symbols
When validate function is called with instance
Then the escape strategy doesn't add decode/encode calls
Then the unnecessary calls are not made during the runtime

Example

// schema
const jsonSchema = {
  common: {
    properties: {
      type: {
        enum: ['common']
      }
    },
    required: [
      'type'
    ]
  }
};

// test
it('should return undefined if object is valid', () => {
  const env = djv();
  env.addSchema('test', jsonSchema);

  const commonObj = {
    type: 'common'
  };
  const errors = env.validate('test#/common', commonObj);
  assert.equal(errors, undefined);
});

// generated function
if (data !== null && typeof data === 'object' && !Array.isArray(data)) {
  if (!data.hasOwnProperty(decodeURIComponent("type"))) return {
    keyword: 'required',
    dataPath: decodeURIComponent(""),
    schemaPath: decodeURIComponent("#/required")
  };
}
if (data[decodeURIComponent('type')] != decodeURIComponent('common')) return {
  keyword: 'enum',
  dataPath: decodeURIComponent("'type'"),
  schemaPath: decodeURIComponent("#'type'/enum")
};
}

• Release 2.1.3 #81
• Fix failing tests draft-04/06, update schema usage #78