feat(plugins): add extra callback methods to checkbox selector

[ghiscoding]

• for our use case, we wanted to expand the full Tree before executing the full row selections, these new callbacks allow to do that and more

[codecov]

Codecov Report

Merging #570 (d887aeb) into master (bf0c912) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #570   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          230       230           
  Lines        15759     15774   +15     
  Branches      5084      5089    +5     
=========================================
+ Hits         15759     15774   +15     

Impacted Files	Coverage Δ
...common/src/extensions/slickCheckboxSelectColumn.ts	100.00% <100.00%> (ø)

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