In #2105503: Implement demo content via Migrate instead of defaultcontent we switched Panopoly to using the Migrate module to handle its demo content. Following this module, in Open Academy we are also now using Migrate extensively for demo content handling. However, we also need to be able to migrate content into various Panopoly Widgets such as the Spotlight and Text widgets. These widgets use custom field types which do not have migrate support at the moment. We need to implement Migrate support for the Panopoly Widgets.