增加群发消息的预览,群发状态,群发速度 (silenceper#332)

* 增加群发消息的预览,群发状态,群发速度

* Update broadcast.go

* Update broadcast.go

* 修复开放平台代公众号jssdk bug

增加群发消息的预览,群发状态,群发速度 (silenceper#332)

* 增加群发消息的预览,群发状态,群发速度

* Update broadcast.go

* Update broadcast.go

* 修复开放平台代公众号jssdk bug

add CommonToken and MiniProgramMixMessage (silenceper#323)

Co-authored-by: huangxiang <[email protected]>

add CommonToken and MiniProgramMixMessage (silenceper#323)

Co-authored-by: huangxiang <[email protected]>

check errcode in ListUserOpenIDs (silenceper#312)

Co-authored-by: huangxiang <[email protected]>

fix: platform wx oauth and js config issue. (silenceper#302)

* fix: platform wx oauth and js config issue.

fix silenceper#301.

* fix: platform query auth code error not detected.

* feat: migrate platform oauth and js api.

* fix: func name

fix:修复微信回调signType为空的问题 silenceper#282 (silenceper#283)

Co-authored-by: Avtion <[email protected]>

Update README.md

优化小程序解密 (silenceper#262)

merge silenceper#221