List image style options in widget as a select list

Problem/Motivation

twstdelf asked if it is possible to add the possibility to select the desired image style using a select list.

Proposed resolution

Add a second widget that uses a select list to show the user the available image styles.

Remaining tasks

• Create the widget with the select list.
• Add appropriate test cases.

User interface changes

A second widget will be created and allows to admin to select in which way users (content editors) can select the desired image style.

API changes

None.