title: ngx-translate with multiple translations at once and dynamic text on ts file
body: <p>I would like to implement dynamic elements into multiple translations with ngx-translate, in order to fuse <a href="https://stackoverflow.com/questions/46173238/use-ngx-translate-in-ts-file">this solution</a> (multiple translations) :</p>
  
  <pre><code>this.translate.get(['HOME', 'MY_ACCOUNT', 'CHANGE_PASSWORD']).subscribe(res =&gt; {
        showToast(res.HOME,res.MY_ACCOUNT,res.CHANGE_PASSWORD);
  });
  </code></pre>
  
  <p>with <a href="https://stackoverflow.com/questions/46155989/ngx-translate-with-dynamic-text-on-ts-file">that one</a> (dynamic text) :</p>
  
  <pre><code>this.translate.get('HOME', {value: 'test_HOME'}).subscribe(res =&gt; {
        showToast(res);
  });
  </code></pre>