WP-4304: Change caption field to plain text for Resources Image.
WP-4316 Added code to set the class for callout-quotes
WP-4316 Added test for empty when checking for the bundle
WP-4314 Adding new file type resource_browser_preview
WP-4343 Setting the image styles for each of the resource images
WP-4343 Setting the image styles for each of the resource images