feat(util:other:lazy): add attriburte property

[cipchk]

• close LazyService.load方法增加第二个参数options，其中有attributes属性，其为{[key:string]:string}属性，可添加到script或者link标签上 ng-alain#2327

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What kind of change does this PR introduce?

[ ] Bugfix
[x] Feature
[ ] Code style update (formatting, local variables)
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Issue Number: N/A

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[ng-alain-bot]

Preview is ready!

[codecov]

Codecov Report

Merging #1548 (25ee4df) into master (586277d) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master    #1548   +/-   ##
=======================================
  Coverage   95.60%   95.61%           
=======================================
  Files         272      272           
  Lines        8446     8456   +10     
  Branches     1656     1661    +5     
=======================================
+ Hits         8075     8085   +10     
  Misses        310      310           
  Partials       61       61           

Impacted Files	Coverage Δ
packages/util/other/lazy.service.ts	100.00% <100.00%> (ø)

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[aLoNeIT]

提几个建议；
1：load等3个函数参数较少，能否只是单纯增加一个参数来实现attribute设置能力，这样可以兼容而非破坏性更新
2：load方法定义应该是load(string | string[] | LazyLoadItem | LazyLoadItem[]):Promise<LazyResult[]>，这样支持单独一个js加载设置url和attribute

[cipchk]

提几个建议； 1：load等3个函数参数较少，能否只是单纯增加一个参数来实现attribute设置能力，这样可以兼容而非破坏性更新 2：load方法定义应该是load(string | string[] | LazyLoadItem | LazyLoadItem[]):Promise<LazyResult[]>，这样支持单独一个js加载设置url和attribute

已做兼容处理，并且这是一个并不热点的接口，这种破坏性变更是可控范围。