public View getItemView(@SuppressWarnings("unused") final ViewGroup parent) {
        throw new UnsupportedOperationException(
                "You need to implement getItemView() if you set itemViewWillBeProvided");
    }
Creates the View for a single Item. This must be implemented if and only if
{@link #isItemViewWillBeProvided()} is true.

@param parent The parent view. Note that there is no need to attach the new view.
@return View for an Item of this Section.
library/src/main/java/io/github/luizgrp/sectionedrecyclerviewadapter/Section.java