[ADD #360] Added prototypic module to remove tree structures.
* This algorithm puts input point coulds to a voxel grid and applies the Principal * Component Analysis to each of these areas. It's calculated how isotropic voxels are. * Either planar voxels have the blue color and isotropic ones are red. There's a * feature to cut avay voxels from the output triangle mesh for the view. You can either * set the minimal point count per voxel or the quotient of the smallest Eigen value over * the biggest one as the maximal isotropic level criteria.
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