support default error

[yoyo837]

validator 支持返回Promise.reject() ，目前必须Promise.reject(new Error('xxx'))

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[codecov[bot]]

Codecov Report

Merging #88 into master will not change coverage. The diff coverage is 100%.

@@           Coverage Diff           @@
##           master      #88   +/-   ##
=======================================
  Coverage   99.87%   99.87%           
=======================================
  Files          13       13           
  Lines         806      806           
  Branches      172      173    +1     
=======================================
  Hits          805      805           
  Misses          1        1

Impacted Files	Coverage Δ
src/utils/validateUtil.ts	100% <100%> (ø)	:arrow_up:

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[zombieJ]

来个 test case？

[yoyo837]

Done