Node replacement utility

[maier49]

Type: feature

The following has been addressed in the PR:

• There is a related issue
• All code has been formatted with prettier as per the readme code style guidelines
• Unit or Functional tests are included in the PR

Description:
Provides a replace utility that functions similarly to decorate but instead replaces the node with the returned value.
Resolves #410

[codecov]

Codecov Report

Merging #440 into master will decrease coverage by 0.06%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #440      +/-   ##
==========================================
- Coverage   97.48%   97.42%   -0.07%     
==========================================
  Files         108      113       +5     
  Lines        6047     6410     +363     
  Branches     1353     1457     +104     
==========================================
+ Hits         5895     6245     +350     
- Misses        152      165      +13     

Impacted Files	Coverage Δ
src/core/util.ts	99.24% <100.00%> (+0.24%)	⬆️
src/routing/Outlet.ts	71.42% <0.00%> (-28.58%)	⬇️
src/core/animations/cssTransitions.ts	0.00% <0.00%> (-6.67%)	⬇️
src/routing/Link.ts	94.73% <0.00%> (-5.27%)	⬇️
src/testing/harness.ts	97.14% <0.00%> (-0.12%)	⬇️
src/shim/array.ts	100.00% <0.00%> (ø)
src/core/WidgetBase.ts	100.00% <0.00%> (ø)
src/core/NodeHandler.ts	100.00% <0.00%> (ø)
src/routing/ActiveLink.ts	100.00% <0.00%> (ø)
src/testing/mocks/middleware/intersection.ts	100.00% <0.00%> (ø)
... and 10 more

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