Add Param structure

[tmigot]

Connected to #64
and review method check

[codecov]

Codecov Report

Base: 92.37% // Head: 93.15% // Increases project coverage by +0.77% 🎉

Coverage data is based on head (216aad1) compared to base (f97b6ef).
Patch coverage: 94.73% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #96      +/-   ##
==========================================
+ Coverage   92.37%   93.15%   +0.77%     
==========================================
  Files           2        2              
  Lines         433      438       +5     
==========================================
+ Hits          400      408       +8     
+ Misses         33       30       -3     

Impacted Files	Coverage Δ
src/CaNNOLeS.jl	93.31% <94.73%> (+0.83%)	⬆️

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