Refactor confusion matrix api .1

[hcyang]

No description provided.

[codecov-commenter]

Codecov Report

Merging #912 into master will decrease coverage by 2.39%.
The diff coverage is 15.82%.

@@            Coverage Diff             @@
##           master     #912      +/-   ##
==========================================
- Coverage   58.18%   55.78%   -2.40%     
==========================================
  Files         220      219       -1     
  Lines       16978    16161     -817     
  Branches     2350     2319      -31     
==========================================
- Hits         9878     9016     -862     
- Misses       6508     6571      +63     
+ Partials      592      574      -18     

Impacted Files	Coverage Δ
...odel/evaluation/cross_validation/CrossValidator.ts	87.67% <ø> (ø)
packages/dispatcher/src/utility/utility.ts	42.80% <1.45%> (-9.07%)	⬇️
packages/dispatcher/src/utility/AppUtility.ts	71.87% <11.11%> (-23.78%)	⬇️
...patcher/src/data_structure/DictionaryMapUtility.ts	12.58% <16.98%> (+0.38%)	⬆️
...athematics/confusion_matrix/ConfusionMatrixBase.ts	91.20% <92.10%> (-0.11%)	⬇️
...rc/mathematics/confusion_matrix/ConfusionMatrix.ts	100.00% <100.00%> (ø)
...mathematics/confusion_matrix/AppConfusionMatrix.ts	6.66% <0.00%> (-18.92%)	⬇️
packages/command/src/readpipeddata.ts	65.21% <0.00%> (-18.12%)	⬇️
packages/qnamaker/src/commands/qnamaker/index.ts	66.66% <0.00%> (-16.67%)	⬇️
...kages/luis/src/commands/luis/application/create.ts	60.00% <0.00%> (-13.34%)	⬇️
... and 119 more

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