* update model save load

* first add

* update model save and load

* update train.py

* update LaneNet model saving and loading

* adapt slim to paddle-1.8

* update distillation save and load

* update nas model save and load

* update model load op

* update utils.py

* update load_model_utils.py

* update model saving and loading

* update copyright

* update palette.py

* update all docs involving color label

* modify usage.md

* usage.md

* Update data_prepare.md

* Update jingling2seg.md

* Update jingling2seg.md

* Update labelme2seg.md

* Update jingling2seg.md

* a

* Update config.md

* Update config.md

* Update config.py

* Update config.py

* Update config.py

* Update config.md

* Update basic_group.md

* Update basic_group.md

* Update data_aug.md

* Update config.md

* Update finetune_pspnet.md

* Update finetune_pspnet.md

* Update finetune_unet.md

* Update finetune_unet.md

* Update finetune_icnet.md

* Update finetune_pspnet.md

* Update finetune_hrnet.md

* Update README.md

* Update finetune_deeplabv3plus.md

* Update finetune_deeplabv3plus.md

* Update README.md

* Update config.md

* Update train_group.md

* Update models.md

* Update model_group.md

* Update model_group.md

* Update train_group.md

* Update train_group.md

* Update model_group.md

* Update model_group.md

* Update README.md

* Update README.md

* Update models.md

* Add files via upload

* Add files via upload

* Update models.md

* Update models.md

* Add files via upload

* Update README.md

* Update models.md

* Update models.md

* Update models.md

* Update models.md

* Update models.md

* Update models.md

* Update models.md

* Update models.md

* Update models.md

* Add files via upload

* Update models.md

* Update models.md

* Update loss_select.md

* Update README.md

* Update loss_select.md

* Add files via upload

* Update loss_select.md

* Add files via upload

* Update loss_select.md

* Update README.md

* Add files via upload

* Update models.md

* Add files via upload

* Update models.md

* Update models.md

* Create 1

* Delete 1

* Create 1

* Add files via upload

* Delete 1

* Add files via upload

* Add files via upload

* Update README.md

* Add files via upload

* Update finetune_deeplabv3plus.md

* Update finetune_icnet.md

* Update finetune_pspnet.md

* Update finetune_hrnet.md

* Update finetune_unet.md

* Update config.md

* Update config.md

* Update usage.md

* Update usage.md

* Update usage.md

* Update usage.md

* Update usage.md

* Update usage.md

* Update usage.md

* Update usage.md

* Create download_optic.py

* Add files via upload

* Add files via upload

* Update usage.md

* Update README.md

* Update usage.md

* Update usage.md

* Update usage.md

* add optic.yaml

* Add files via upload

* Delete deeplabv3p_xception65_pet.yaml

* Delete hrnet_w18_pet.yaml

* Delete icnet_pet.yaml

* Delete pspnet.yaml

* Delete unet_pet.yaml

* contrib

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* modify contrib/infer.py count