feat(menu): add options to exclude column titles from Menus, closes #189

[ghiscoding]

• excludeFromColumnPicker for the Column Picker
• excludeFromGridMenu for the Grid Menu

[codecov-io]

Codecov Report

Merging #203 into master will increase coverage by 0.01%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master     #203      +/-   ##
==========================================
+ Coverage    40.9%   40.91%   +0.01%     
==========================================
  Files         146      146              
  Lines        6766     6775       +9     
  Branches     2234     2237       +3     
==========================================
+ Hits         2767     2771       +4     
- Misses       3996     4001       +5     
  Partials        3        3

Impacted Files	Coverage Δ
...-slickgrid/extensions/checkboxSelectorExtension.ts	28.58% <0%> (-1.73%)	⬇️
...lar-slickgrid/extensions/rowDetailViewExtension.ts	21.96% <0%> (-0.27%)	⬇️
...ules/angular-slickgrid/formatters/maskFormatter.ts	93.34% <0%> (-6.66%)	⬇️

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