Add a shorthand for "getter" and "setter" on Objects

[ctippler]

Feature Request

Currently we often need to create getter/setter to get or set values by a field name.

                $fieldNames = ['field1','field2'];

                foreach($fieldNames as $field){
                    #currently
                    $value = $o->{"get".ucfirst($field)}();
                    #could be
                    $value = $o->get($field);
                }

Add a shorthand to get and set Values on objects by there field Name.

Add the following Code to the AbstractObject.php

/**
 * @param string $fieldName
 * @return mixed
 */
public function get($fieldName){
    return $this->{"get".ucfirst($fieldName)}();
}

/**
 * @param string $fieldName
 * @param $value
 * @return mixed
 */
public function set($fieldName,$value){
    return $this->{"set".ucfirst($fieldName)}($value);
}

[brusch]

Would be also good then to have them on localized fields and objects bricks (and maybe somewhere else?) - just to be consistent.