Tlseparation

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- Corrected automated calculation of parameter cf_rad in *large_tree_3*.
- Added new gmm_nclasses parameter to *large_tree_3*.

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- Changed *voxel_path_detect* parameters to speed up processing.
- Added maximum iterations to *detect_main_pathways* to avoid infinite loops or long processing times.

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- Bug fixes in *automated_separation.large_tree_3*.

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- Fixed base point index in *continuity_filter*.
- Added new voxelization wrapped around *detect_main_pathways* that aims to speed up the processing.
- Added new *automated_separation* script, *large_tree_3*.

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- Changed clustering in filtering.cluster_filter from DBSCAN to HDBSCAN in order to improve memory efficiency.
- Minor adjustments in automated_separation.large_tree_1.
- Created new knn optimization function to detect knn values automatically.
- Added block processing to *subset_nbrs*.e
- Minor fixes for improvement on continuity_filter stability.
- Added new automated separation script, automated_separation.large_tree_2.
- Corrected class_filter application on large_tree_1 and large_tree_2.
- Fixed class_filter input target values (finished changing valid values from 1 or 2 to 0 or 1).
- Added a new final filtering step to large_tree_2 using detect_main_pathways.

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- Minor fixes.