responsive_image_batch 8.x-1.0-beta1

Responsive Image Batch is a helper module for Drupal 8 to speed up creating responsive image styles. It provides a single interface for the following tasks:
- Calculate image sizes in various breakpoints and multipliers for the Picture element.
- Calculate image sizes for Sizes type responsive images, based on increment values.
- Name and create multiple image styles in batch and assign image effects to them.
- Map image styles to a "responsive image style". This maps image styles to the breakpoints and multipliers of the picture element.
This is the initial release for this module.