Experiments with performance of setting wellbores in module

[HavardNJ]

Some experiments with performance. For Troll it takes 2-3 seconds before all wellbores are rendered using batching. Running a single batch runs in ~1 sec, adding all children in one go seems to shave off ~200ms. Tried using Pixi.BitmapText instead of Pixi.Text as Pixi.Text is drawn to a texture using the canvas API into a texture per label, in theory BitmapText should be more performant as it uses a single texture. Switching to Troll from other field sometimes takes as little as 600ms for adding wellbores using this, however this is not stable as it crashes after changing pages. Not sure if a 600ms freeze would be acceptable (much faster for all other fields. f.ex. snorre takes <100ms), IMHO showing the wellbores faster provides a better user experience than having an animation which renders the same wellbores in1-2 seconds although the animation looks nice.