feature/export metric parser interface

[KennethanCeyer]

change

• update metric-parser version
• add export keyword for metric-parser types (tree, ast)
• update npm version
• update dist, typedoc files
• add unit test with dom

[coveralls]

Pull Request Test Coverage Report for Build 207

• 9 of 14 (64.29%) changed or added relevant lines in 4 files are covered.
• 129 unchanged lines in 7 files lost coverage.
• Overall coverage increased (+17.1%) to 30.373%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/ui/ui.manager.ts	0	1	0.0%
src/ui/ui.dom.ts	1	5	20.0%

Files with Coverage Reduction	New Missed Lines	%
src/ui/ui.base.ts	2	22.22%
src/ui/ui.pipe.ts	2	26.09%
src/token.helper.ts	2	65.22%
src/ui/ui.hook.ts	2	25.0%
src/ui/ui.dom.ts	14	20.27%
src/ui/ui.ts	16	17.65%
src/ui/ui.manager.ts	91	9.26%

Totals
Change from base Build 184:	17.1%
Covered Lines:	283
Relevant Lines:	723

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💛 - Coveralls

[codecov-io]

Codecov Report

Merging #20 into master will increase coverage by 19.38%.
The diff coverage is 52.94%.

@@             Coverage Diff             @@
##           master      #20       +/-   ##
===========================================
+ Coverage   17.83%   37.21%   +19.38%     
===========================================
  Files          19       19               
  Lines         830      739       -91     
  Branches      118       98       -20     
===========================================
+ Hits          148      275      +127     
+ Misses        682      463      -219     
- Partials        0        1        +1

Impacted Files	Coverage Δ
src/ui/ui.dom.ts	22.95% <0%> (+22.95%)	⬆️
src/ui/ui.manager.ts	11.82% <0%> (+11.82%)	⬆️
src/global.ts	66.66% <100%> (ø)	⬆️
src/ui/ui.element.helper.ts	100% <100%> (+100%)	⬆️
src/string.helper.ts	83.33% <0%> (+16.66%)	⬆️
src/ui/ui.ts	18.75% <0%> (+18.75%)	⬆️
src/ui/ui.base.ts	33.33% <0%> (+33.33%)	⬆️
src/ui/ui.hook.ts	35.71% <0%> (+35.71%)	⬆️
... and 5 more

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