title: Set UIImage to UIImageView directly with kingfisher
body: <p>I want to setImage with UIImage directly and not from any Source, Resource.
  I already have my image and want to set it with caching to my imageView.</p>
  
  <pre><code>let myImage = UIImage
  
  kingfisherView.kf.setImage(with: myImage)
  </code></pre>
  
  <p>i want this to be done like i set image to UIImageView i.e</p>
  
  <pre><code>UIImageView.image = myImage
  </code></pre>
  
  <p>But with caching</p>
  
  <p>i am not downloading image from a source i am generating them by myself (Latex). and caching them with </p>
  
  <pre><code>let cache = ImageCache.default
  
  cache.store(renderedLaTeX ?? UIImage(), forKey: "image\(indexPath.row)")
  </code></pre>
  
  <p>I just want to set that cached image to my imageView. </p>
  
  <p><code>UIImage.image = cachedImage</code> </p>
  
  <p>is not working and is loading image again and again as i scroll up and down in <code>CollectionViewCell</code></p>
  
  <p>Or any other way of doing this so that i don't have load imageView with a image again and again. My <code>ImageView</code> is inside <code>UICollectionViewCell</code></p>