Redesign the AppEvent interface to get away from Go-Spring dependence

[limpo1989]

No description provided.

[codecov]

Codecov Report

Merging #6 (4558021) into master (6a32f12) will increase coverage by 0.14%.
The diff coverage is 91.17%.

@@            Coverage Diff             @@
##           master       #6      +/-   ##
==========================================
+ Coverage   81.81%   81.95%   +0.14%     
==========================================
  Files          45       45              
  Lines        3541     3552      +11     
==========================================
+ Hits         2897     2911      +14     
+ Misses        504      502       -2     
+ Partials      140      139       -1     

Files	Coverage Δ
gs/gs.go	73.25% <100.00%> (ø)
gs/logger.go	100.00% <100.00%> (ø)
internal/utils/type.go	100.00% <100.00%> (ø)
gs/gs_bean.go	78.60% <50.00%> (ø)
gs/app.go	68.10% <75.00%> (+0.62%)	⬆️

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