Create tag '3d-v3.2.0'

Revert "update meta version to optimize the startup speed of the edit…

…or (cocos#8868)" (cocos#8882)

This reverts commit 20ea5c3.

Add `trim-changed` event for Editor. (cocos#8843)

* Add `trim-changed` event for Editor.

类似 `spriteframe-changed` 时间, 给Editor使用.
扩展和Sprite联动的 自定义组件时会需要.

* Update CCSprite.js

* Update CCSprite.js

Create tag '3d-v3.1.1'

fix cc.Follow misspelled word (cocos#8720)

* fix cc.Follow misspelled word

* fit : fit with old functions and warning reminders

* Update CCAction.js

* Add a comment on the obsolete interface

Create tag '3d-v3.1.0'

ban audio playing in editor (cocos#8391)

* ban audio playing in editor

* update audio source

ban audio playing in editor (cocos#8391)

* ban audio playing in editor

* update audio source

Create tag '3d-v3.0.0'

support downloaders (cocos#8241)