Allow to change the output port for an inspected object

[hogoww]

For example when inspecting a dictionary, the old behavior (which I kinda want back) was to inspect the value instead of the selected association. However I didn't find how to do that.

^ aBuilder newTable 
	addColumn: (SpStringTableColumn 
		title: 'Key'
		evaluated: [ :each | StObjectPrinter asTruncatedTextFrom: each key ])
		beSortable;
	addColumn: (SpStringTableColumn 
		title: 'Value' 
		evaluated: [ :each | StObjectPrinter asTruncatedTextFrom: each value ])
		beSortable;
	items: self associations;
	yourself