Dawei101/ctx support

[dawei101]

1. Support context in hooks
2. Autotime feature support int(int/int64/uint/uint64) type

[codecov]

Codecov Report

Merging #29 (0660975) into master (e2442f9) will increase coverage by 1.20%.
The diff coverage is 88.46%.

@@            Coverage Diff             @@
##           master      #29      +/-   ##
==========================================
+ Coverage   75.59%   76.79%   +1.20%     
==========================================
  Files          15       15              
  Lines         635      655      +20     
==========================================
+ Hits          480      503      +23     
+ Misses        109      105       -4     
- Partials       46       47       +1     

Impacted Files	Coverage Δ
model.go	76.15% <70.00%> (-1.27%)	⬇️
db.go	67.23% <100.00%> (+1.32%)	⬆️
hook.go	87.50% <100.00%> (+22.28%)	⬆️
util.go	93.84% <100.00%> (+0.40%)	⬆️

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[fifsky]

I prefer to
Use(" db ").WithContext (ctx).Model (&User{}).Get ()

eg:
https://gorm.io/docs/context.html

[dawei101]

Pls review again, thanks

@fifsky

[fifsky]

good PR