Version 0.0.3
-------------
* added `index` to CategoryTree
* Fixed CategoryTree.decision when the tree is rooted
* Add ignore_class_idxs to CategoryTree.decision
* Add always_refine_idxs to CategoryTree.decision
* Fix torch incompatibility in CategoryTree.decision


Version 0.0.2
-------------
* Minor test fixes


Version 0.0.1
-------------
* Initial code for 2D O(1) chip sampling
* Initial code for CategoryTree
* Initial code for CocoDataset
* Initial code for dummy detection toydata
