* Add module to analysis dygraph
* Support fusing conv bn
* Add tutorial for qat with conv bn fused constraint
* Add what_is_constraints

1. Remove fluid
2. Remove unused codes
2.1 remove adabert
2.2 remove ddpg controller of NAS
2.3 remove paddleslim.models
2.4 Remove PC-DARTS

* add new function ptq first then initialize qat scale with ptq scale

* [Eager]Support dygraph2program for Eager Mode without program_desc_tracing

* [Eager]Fix VarWrapper isintance type problem
Co-authored-by: Nwhs <wanghaoshuang@baidu.com>

* update dynabert

* update

* update

* update

* add transformer_pruner to autocompress

* add auto

* update transformer pruner

* ptq-hpo support eval function

* update

* update

* update

* update docs

* add comment

* fix patterns

* fix a pruner's bug

* support predict pruned model

* support predict pruned model

* support sparse model

* add interface for quick pruning

* add hardware list for latencyPredictor

* add source-free

* add source-free

* add asp

* update

* add fleet

* add docs

* rename

* fix unittest

* Fix warning

* Add unittest

* update_check_ss

* update_check_ss

* update_check_ss

* ss_multi_output

* remove_some_comments

* Merge branch 'develop' of https://github.com/PaddlePaddle/PaddleSlim into update_check_ss

* merge_conflicts

* add_coverage

* new_export_func

* add_test

* remove_kernel_prune

* add_test_&_update_clear_ss

* add support of conditional block for pruning

* support pruning conditional block

* add notes for code

* fix bug when prune the depthwise convolution layer

* fix bug when prune the depthwise convolution layer

* fix bug when prune depthwise convolution layer

* fix pruner when prune depthwise convolution layer

* remove print from unit test

2. Add copyright.
3. Rmove FLOPS from graph wrapper.