Extra Block Types (EBT): Slideshow | Shivakumar Ramamurthy

Extra Block Types: Slideshow module provides ability to add a block with FlexSlider.
http://flexslider.woothemes.com/

EBT Slideshow also allows to display carousel as well (with animation:slide option):
http://flexslider.woothemes.com/carousel-min-max.html

EBT modules provide ability to add different blocks in Layout Builder in few clicks. You can install separate block types from this bunch of EBT modules:

https://www.drupal.org/project/ebt_slideshow