feat(selection): add ability to allow and forbid a node selection (closes #220)

[rychkog]

No description provided.

[codecov]

Codecov Report

Merging #221 into develop will decrease coverage by 0.19%.
The diff coverage is 86.36%.

@@            Coverage Diff             @@
##           develop     #221     +/-   ##
==========================================
- Coverage    93.77%   93.58%   -0.2%     
==========================================
  Files           25       25             
  Lines          980      997     +17     
  Branches       136      140      +4     
==========================================
+ Hits           919      933     +14     
- Misses          35       36      +1     
- Partials        26       28      +2

Impacted Files	Coverage Δ
test/data-provider/tree.data-provider.ts	100% <ø> (ø)	⬆️
src/tree-internal.component.ts	85.08% <0%> (-0.96%)	⬇️
src/utils/fn.utils.ts	100% <100%> (ø)	⬆️
src/tree-controller.ts	90.27% <100%> (+0.88%)	⬆️
src/tree.types.ts	100% <100%> (ø)	⬆️
src/tree.ts	92.76% <75%> (-0.31%)	⬇️

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