GitLab

* Added CaDDN detector and support for image, depth map, and 2D GT box
dataloading

* Moved image flip augmentation to augmentor_utils

* Updated default get item list to include points

* Moved utils functions into transform_utils

* Combined FFE + F2V into ImageVFE, renamed FFE to FFN, moved depth downsample into data_processor

* Updated README with updated CaDDN weights

* Updated comments for image vfe

* add kitti_utils.py for evaluating with KITTI metrics

* Make TensorBoard more concise

* Export only metrics using 40 recalll positions

support merge_all_iters_to_one_epoch to avoid deadlock when switching epochs, eval last 10 epochs after training

support merge_all_iters_to_one_epoch to avoid deadlock when switching epochs, eval last 10 epochs after training (#137)

support merge_all_iters_to_one_epoch to avoid deadlock when switching epochs, eval last 10 epochs after training

* add codes for creating kitti infos and gt database

add dataset template codes with data_augmentor and data_processor structure in the unified normative coodinates, and utils codes