梳理错误处理

[juvenn]

• 统一 CloudException ，支持在异常栈中打印 http status, method, url
• 在更上层对云引擎的异常进行处理，避免内部异常没有被 catch https://leanticket.cn/tickets/21441
• 云函数中抛出的异常 FunctionError ，支持自定义 http status

[juvenn]

close #148

[codecov-io]

Codecov Report

:exclamation: No coverage uploaded for pull request base (master@1d8a592). Click here to learn what that means. The diff coverage is 14.58%.

@@           Coverage Diff            @@
##             master    #190   +/-   ##
========================================
  Coverage          ?   66.9%           
  Complexity        ?     801           
========================================
  Files             ?      36           
  Lines             ?    2284           
  Branches          ?       0           
========================================
  Hits              ?    1528           
  Misses            ?     756           
  Partials          ?       0

Impacted Files	Coverage Δ	Complexity Δ
src/LeanCloud/Engine/LeanEngine.php	0% <0%> (ø)	81 <22> (?)
src/LeanCloud/Engine/FunctionError.php	0% <0%> (ø)	2 <1> (?)
src/LeanCloud/Query.php	96.87% <100%> (ø)	69 <0> (?)
src/LeanCloud/Client.php	84.16% <50%> (ø)	95 <0> (?)
src/LeanCloud/CloudException.php	62.5% <66.66%> (ø)	3 <1> (?)

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 1d8a592...668ad59. Read the comment docs.

[juvenn]

@jysperm PTAL