Group

It is a component that contains one or more components.
The group displays itself by rendering its children.

Screen API

• mount(component, x, y) - mounts children to the screen by converting its relative coordinates to the real screen coordinates
• contains(component, x, y) - returns true if (x, y) is inside one of the children

Render API

• newState(component, watchState) - calls newState for each child
• render(component, watchState, tftApi) - calls render for each child