feat(core): dynamically add/remove columns

[ghiscoding]

No description provided.

[codecov]

Codecov Report

Merging #13 into master will increase coverage by 0.03%.
The diff coverage is 66.67%.

@@            Coverage Diff             @@
##           master      #13      +/-   ##
==========================================
+ Coverage   99.56%   99.58%   +0.03%     
==========================================
  Files         184      184              
  Lines        9883     9882       -1     
  Branches     3255     3360     +105     
==========================================
+ Hits         9839     9840       +1     
+ Misses         44       42       -2     

Impacted Files	Coverage Δ
...bundle/src/components/slick-vanilla-grid-bundle.ts	92.48% <60.00%> (+0.35%)	⬆️
packages/common/src/services/grid.service.ts	100.00% <100.00%> (ø)

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