title: Only split on the first occurence of a character
body: <p>If I have a string like</p>
  
  <pre><code>foo:bar baz:count
  </code></pre>
  
  <p>and I want to split on the first occurrence of <code>:</code> and get an array returned which contains only two elements: </p>
  
  <ul>
  <li>A string which is the element before the first colon.</li>
  <li>A string which is everything after the first colon.</li>
  </ul>
  
  <p>How can I achieve this in Powershell?</p>