Class LUISpaceLayout

Consumes the entire space of the parent.

Each child can consume a varying amount of it's parent's space. This is highly order dependent.

Child-Layout-Properties:

 - dir:string    // "left", "right", "top", "bottom"
 - size:number   // amount of space the element wants to consume
 - rest: string  // "x" or "y"

space:
  0              // 0 pixel
  0.5            // 50% of the space
  1              // 1 pixel
  10             // 10 pixel