Merge pull request !4423 from lianliguang/add-reshape-type-to-tensor

Merge pull request !4554 from wangchangkai/master

Merge pull request !4565 from xutianchun/quant_0817

Merge pull request !4466 from looop5/akg_readme

1. Use C++ native bool type for tensor:
Since we changed tensor data from vector<T> to unique_ptr<T[]>,
boolean tensor can be implemented using C++ native bool type.

2. Improve ToString():
Try to make tensor string representation looks better.

Merge pull request !4560 from chenjianping/lite_dev2

Merge pull request !4482 from yao_yf/add_field_in_strategy_ckpt

Merge pull request !4512 from YuJianfeng/internal_output

Merge pull request !4527 from zhaizhiqiang/master

Merge pull request !4553 from wandongdong/up

Merge pull request !2948 from amongo/FixControlFlow

Merge pull request !4552 from lixian/master

Merge pull request !4551 from lixian/master

Merge pull request !4545 from yangruoqi713/lite

Merge pull request !4504 from wangshaocong/lite

Merge pull request !4546 from hangq/master

Merge pull request !4544 from jianghui/master

Merge pull request !4452 from jianghui/master

Merge pull request !4541 from chenjianping/lite_dev2

Merge pull request !4531 from ling/deconv

Merge pull request !4542 from hangq/master

Merge pull request !4537 from sunsuodong/arm32

Merge pull request !4483 from cjh9368/fp16

Merge pull request !4533 from ghzl/add-emotions-model

Merge pull request !4536 from hangq/master