Add don't transform option to Glide

GlideLoader.kt

fun ImageView.load(url: String, onLoadingFinished: () -> Unit = {}) {
    ...
    val requestOptions = RequestOptions.placeholderOf(R.drawable.placeholder)
            .dontTransform()
    Glide.with(this)
            .load(url)
            .apply(requestOptions)
            .listener(listener)
            .into(this)
}