qiniu api v7.6.0; add debug info for http.DefaultClient

[sxci]

变更背景描述

升级到 qiniu api v7.6.0 ;
qiniu/api.v7 kodo 相关 http 使用了 自定义的 Client 支持打印 http 请求头、请求体；
qiniu/api.v7 cdn 等 api ，使用了 http.DefaultClient ，也添加打印 http 请求头、请求体 能力

qshell -d 打印请求头、响应头
qshell -D 打印请求头、请求体、响应头、响应体

jira issue链接

https://jira.qiniu.io/browse/TS-1030

主要变更点

• []fix bug
• [v]new feature
• []不兼容变更

Checklist

• [v] 已自测
• [] 已更新Readme

[qiniu-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bachue, sxci

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [bachue,sxci]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[codecov]

Codecov Report

Merging #288 (ad12113) into master (2ab8bc4) will decrease coverage by 0.41%.
The diff coverage is 0.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##           master    #288      +/-   ##
=========================================
- Coverage    6.76%   6.36%   -0.41%     
=========================================
  Files          40      40              
  Lines        4876    4492     -384     
=========================================
- Hits          330     286      -44     
+ Misses       4540    4201     -339     
+ Partials        6       5       -1     

Impacted Files	Coverage Δ
cmd/root.go	8.69% <0.00%> (-7.70%)	⬇️

... and 39 files with indirect coverage changes