feat(module:carousel): add enhancement API and methods

[hsuanxyz]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[X] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

Issue Number: #652

What is the new behavior?

Added the following API & methods

API

参数	说明	类型	默认值
nzAutoPlaySpeed	自动切换速度, 单位毫秒	Number	3000
nzPauseOnHover	鼠标悬停暂停	Boolean	true
nzAfterChange	切换面板后的回调, 参数为当前索引	Function(number)	无
nzBeforeChange	切换面板前的回调, 参数为当前的索引与被切换到的索引	Function({ form: number; to: number})	无

Methods

方法名	参数	说明	返回值值
nzSlickNext	无	切换到下一个面板	无
nzSlickPrev	无	切换到下一个面板	无
nzSlickGoTo	index: number	切换到指定索引面板	无

Does this PR introduce a breaking change?

[ ] Yes
[X] No

Other information

[coveralls]

Coverage decreased (-0.09%) to 41.623% when pulling 873495b on HsuanXyz:carousel into 9073bc8 on NG-ZORRO:master.

[vthinkxie]

Hi @hsuanxyz , please rebase master and make all boolean @Input support attributes usage as https://github.com/NG-ZORRO/ng-zorro-antd/pull/459/files#diff-26c9eaa42ed9a7448f1a559c238529d3R68

[hsuanxyz]

@vthinkxie OK now.

[coveralls]

Coverage decreased (-0.1%) to 41.345% when pulling a453eb6 on HsuanXyz:carousel into 8ba3ea8 on NG-ZORRO:master.

[coveralls]

Coverage decreased (-0.1%) to 41.345% when pulling 3fd4752 on HsuanXyz:carousel into 8ba3ea8 on NG-ZORRO:master.

[coveralls]

Coverage decreased (-0.09%) to 40.991% when pulling 1f63b9c on HsuanXyz:carousel into 8665639 on NG-ZORRO:master.

[vthinkxie]

should be

if ((this.nzAutoPlay && !this.nzPauseOnHover) || (this.nzAutoPlay && this.nzPauseOnHover && !this._mouseHover)){
}

[vthinkxie]

@hsuanxyz

[hsuanxyz]

@vthinkxie Sorry I botch up the git log, new PR #688