change ImagefolderDV2 name

change ds.transforms.vision to ds.vision

change batch api to match map api more closely

compose op changes

test_pylint

remove compose op from vision, move to transform module, refactor map and batch to use column_order

Merge pull request !5495 from yao_yf/modelzoo_wide_and_deep_readme1

Merge pull request !5465 from yao_yf/remove_bool_paraser_in_wide_and_deep

Merge pull request !5350 from lichen/rectification_init

Merge pull request !5351 from yao_yf/parallel_context_collation

Merge pull request !5230 from yangyongjie/master

Merge pull request !5045 from yao_yf/wide_and_deep_eval_host_device

Merge pull request !4933 from huangxinjing/wide-deep-checkpoint

Merge pull request !4907 from huangxinjing/wide-deep-readme

Change the default value of the parameter
Add datasink size.

Merge pull request !4865 from huangxinjing/wide-deep-readme

Merge pull request !4857 from tom_chen/deepfm_lr

Merge pull request !4835 from huangxinjing/outbrain-eval

Merge pull request !4703 from tom_chen/deepfm_gpu

Merge pull request !4685 from ZPaC/master-supports-export-server-ckpt

fixed pylint errors

Merge pull request !4736 from huangxinjing/wide-deep-mutli-table-pos

Merge pull request !4569 from hanjun996/master

Merge pull request !4682 from yao_yf/wide_and_deep_8p_data_parallel_only_save_0ckpt

Merge pull request !4581 from yao_yf/modelzoo_wide_and_deep_mutitable

Merge pull request !4458 from zyli2020/change_wide_and_deep_model_zoo_script