====== Mask Node ======
Mask is a node that can group others nodes and edit all children nodes' texture offset. FIXME\\
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On Mask, these proprieties that can be edited:\\

===== Transform =====
  * Translation: x, y, z
  * Lock to root node
  * Rotation: x, y, z
  * Scale: x, y
  * Snap to pixel
  * Sorting

===== Drawable =====
  * Texture offset