title: How to get the searched text in v-client-table?
body: <p>I am trying to create a custom column filter in v-client-table.</p>
  <p><a href="https://codepen.io/pydev/pen/BaZKgpR" rel="nofollow noreferrer">https://codepen.io/pydev/pen/BaZKgpR</a></p>
  <pre><code>    options: {
        dateColumns: ['birth_date'],
        filterable: ['name','manufacturer', 'birth_date'],  
        headings: {
          name: 'Name',
          birth_date: 'Birth Date',
          age: 'Age',
        },
  </code></pre>
  <p>I am trying to make some tweaks to the 'Name' column filter.</p>
  <ul>
  <li><p>I tried to get the text entered in the 'Name' search field so that I can mimic a customFilter, but unable to find a way to get the searched text.</p>
  </li>
  <li><p>I am strictly looking to keep the search box in the column filter.</p>
  </li>
  </ul>
  <p>Thanks in advance.</p>