模型增加extraSave方法，支持触发模型写入数据事件（同replace）

[Hhh0121]

[codecov-commenter]

Codecov Report

Patch coverage has no change and project coverage change: -0.01 ⚠️

Comparison is base (35787e6) 11.83% compared to head (a4286db) 11.82%.

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Additional details and impacted files

@@             Coverage Diff              @@
##                3.0     #472      +/-   ##
============================================
- Coverage     11.83%   11.82%   -0.01%     
- Complexity     2955     2956       +1     
============================================
  Files            64       64              
  Lines          7116     7121       +5     
============================================
  Hits            842      842              
- Misses         6274     6279       +5     

Flag	Coverage Δ
unittests	11.82% <0.00%> (-0.01%)	⬇️

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Impacted Files	Coverage Δ
src/Model.php	0.00% <0.00%> (ø)

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