[ISIS-2075] Allow multiple layouts to be defined, and a helper method such as "layout()" that returns which to use, similar to iconName() and cssClass().

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0-M3
• Component/s: Isis Applib (programming model)
• Assignee: Daniel Keir Haywood
• Reporter: Daniel Keir Haywood
• Created: 06/Jan/19 13:26
• Updated: 19/Mar/20 16:34
• Resolved: 19/Mar/20 16:34