Merge pull request !4251 from Peilin/efficientnet

Merge pull request !4246 from Peilin/faster-rcnn-type-support

Merge pull request !4409 from zhangxinfeng3/master

Merge pull request !4024 from JonathanY/roihalf

Merge pull request !4368 from 34bunny/GPU-RandomChoiceWithMask-fix

Merge pull request !4430 from xutianchun/quant_0814

Merge pull request !4404 from yangzhenzhang/update-field-split-in-forward-communication

Merge pull request !4397 from sunsuodong/leaky_relu

Merge pull request !4415 from songhonglei413/roi

Merge pull request !4277 from caifubi/profiling

Merge pull request !4345 from gukecai/parallel-genmask

Merge pull request !4418 from huanghui/unique-with-pad-cpu-kernel

Merge pull request !4369 from XunDeng/pp_poc_v3

Merge pull request !4416 from lyvette/master

Merge pull request !4394 from zhanyuan/dev

Merge pull request !4410 from yangruoqi713/lite

Merge pull request !4414 from wangmin0104/master

Merge pull request !4343 from ZhangQinghua/master

Merge pull request !4058 from lijiaqi/cell_inputs

Merge pull request !4374 from hangq/master

Merge pull request !4376 from zhengjun10/master

fix pylint

addressed code review comment

Merge pull request !4427 from cathwong/ckw_c_api_textfile_followup

Shuffle: shuffle_size -> buffer_size

Merge pull request !4322 from EricZ/bitmap_support

Merge pull request !4383 from genglishuai/genglshOK

Merge pull request !4420 from chenjianping/lite_dev

Merge pull request !4401 from zhaozhenlong/lite/op/pad_int8_threads

Merge pull request !4370 from zhangbuxue/support_kw_and_kwargs_for_cell_in_pynative

Merge pull request !4313 from peixu_ren/custom_pp_ops

Merge pull request !4366 from TinaMengtingZhang/cpp-api-repeat-count