Grid Filter Highlighter

Based on https://github.com/amahdy/vaadin-grid-filter-h Highlights all occurrences in the Grid items of a given filter text.

grid.addColumn(new ComponentRenderer<>(VaadinGridFilterH::new,
  (highlighter, person) -> {
    highlighter.setItem(person.getFirstName());
    highlighter.setFilter(fnFilter.getValue());
  }));