added ignoreEmptyLines to FileLength and MethodLength checks

[AlexHaxe]

breaking removed countEmpty from MethodLength (use ignoreEmptyLines)
using token count for threshold in CodeSimilarity

[codecov]

Codecov Report

Merging #486 into dev will decrease coverage by 6.36%.
The diff coverage is 98.57%.

@@            Coverage Diff             @@
##              dev     #486      +/-   ##
==========================================
- Coverage   96.88%   90.52%   -6.37%     
==========================================
  Files         105      105              
  Lines        6716     6713       -3     
  Branches      912      913       +1     
==========================================
- Hits         6507     6077     -430     
- Misses        208      226      +18     
- Partials        1      410     +409

Impacted Files	Coverage Δ
src/checkstyle/checks/size/FileLengthCheck.hx	96.66% <100%> (-3.34%)	⬇️
...style/checks/whitespace/ExtendedEmptyLinesCheck.hx	87.25% <100%> (-9.97%)	⬇️
...c/checkstyle/checks/whitespace/ListOfEmptyLines.hx	93.27% <100%> (-5.79%)	⬇️
...rc/checkstyle/checks/coding/CodeSimilarityCheck.hx	98.14% <100%> (-0.57%)	⬇️
src/checkstyle/checks/size/MethodLengthCheck.hx	97.77% <96.42%> (+35.45%)	⬆️
...eckstyle/checks/whitespace/WhitespaceAfterCheck.hx	50.6% <0%> (-49.4%)	⬇️
.../checkstyle/checks/whitespace/OperatorWrapCheck.hx	60.21% <0%> (-39.79%)	⬇️
src/checkstyle/utils/ArrayUtils.hx	16.66% <0%> (-33.34%)	⬇️
src/checkstyle/checks/literal/ERegLiteralCheck.hx	83.33% <0%> (-16.67%)	⬇️
src/checkstyle/utils/StringUtils.hx	83.33% <0%> (-16.67%)	⬇️
... and 67 more

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