2. add the description of  deployment based on cpu

1. Fix the bug which original height and width are in wrong order when using analysis mode to infer.
2. Add the resize step when visualizing the segment inference result.
3. Polish the document of README.md, linux_build.md and vis.md, describe more details specifically.

* improve create_dataset_list

* add create_dataset_list function

* update check.py

* Update check.md

* Update download_and_convert_voc2012.py

* add PASCAL VOC2012 download and convert scripts

* modify data_prepare.md

* add create_dataset_list function

* Create create_dataset_list.md

* del .idea

* modify unet_pet.yaml error

* modify yaml

* add create_dataset_list function

* Create create_dataset_list.md

* del .idea

fix hsv_color_jitter bug

* Update finetune_deeplabv3plus.md

* Update finetune_icnet.md

* Update finetune_unet.md

modify test/configs/unet_pet.yaml

Update finetune_unet.md

update finetune_deeplabv3plus.md