title: RxSearchView not supporting androidx SearchView?
body: <p>I've migrated my project to androidx. When i use <code>RxSearchView</code> it results in an error</p>
  
  <pre><code>RxSearchView.queryTextChanges(searchView).
  </code></pre>
  
  <p>Type mismatch.
  Required:
  <strong>android.widget.SearchView</strong></p>
  
  <p>Found:</p>
  
  <p><strong>androidx.appcompat.widget.SearchView</strong></p>