Allow first argument of add() to contain array.
Allow first argument of add() to contain array.

add([‘Menu’, [‘swatch’=>’ink’]) format can now be used. The unnamed
property is used as class name and the rest is used as properties.

This is helpful if you need to pass only name of the class such as
app->pathfinder_class

atk4/atk4,xepan/atk4,xepan/atk4,atk4/atk4,atk4/atk4,atk4/atk4,xepan/atk4