* remove load_static_weights

* add scipy in requirements

* enable shared memory

* add VisualDL and save best_model

* add VisualDLWriter callback

* Update install doc and deploy doc.

* add yolov3 voc configs for dygraph

* simplify yolov3 darknet voc configs

* support num_classes shared from dataset config

* Fix the bug of export quantized inference model

* Fix the bug of export quantized inference model

* add blazeface & update rcnn modelzoo

* remove condition num_priors

* fix doc link, test=dygraph, test=document

* use scripts to build on windows flatform, test=dygraph

* Use new preproces OPs in deploy/infer.py, test=dygraph

* fix bug of image_shape can not set 2-dims, test=dygraph

* fix cpp build, test=dygraph

* set param target_size must be [h, w] in Resize function, test=dygraph

* fix bug, test=dygraph

* fix ssd output format (bbox: [N, 6], bbox_num: bbox_num), test=dygraph

* fix ssd prediction in cpp mode, test=dygraph

* add pedestrian and vehicle models

* add pedestrian and vehicle json

* modify pedestrian and vehicle configs

* modify docs and links, test=dygraph

* update faster modelzoo and config, test=dygraph

* update model link, test=dygraph

* add gn head fpn, test=dygraph

* add gn for cascade

* update gn readme, test=dygraph

* from_config hrnet, test=dygraph

* update hrnet modelzoo, test=dygraph