title: typeorm: Select options for relationship
body: <p>My relationship ManyToMany gives me that result:</p>
  
  <pre><code>Project {
      name: 'Project1',
      users: [
          User{
              id: 1,
              name: 'John',
              email: 'john@johncompany.com'
           }
       ]
  </code></pre>
  
  <p>How can I select only <code>name</code> or <code>email</code> for my users?</p>