Dynamic bounds margin

[wouterlucas]

Currently the bounds margin is created on the stage and passed down on every node, we'll want to expose a method/props to dynamically set the bounds margin area per node

[Drulokia]

If a bounds margin is set on a node, should its children take the boundsmargin from the parent or still like now from the stage if the childrens don't have a boundsmargin set?

[elsassph]

Maybe worth describing the use case. If the goal is to activate a component off screen, you probably want the custom bounds to be inherited