chore: Add detekt static analyzer

[codecov[bot]]

Codecov Report

Merging #18 (8ab25eb) into main (dc2b266) will increase coverage by 0.95%. The diff coverage is 88.88%.

@@             Coverage Diff              @@
##               main      #18      +/-   ##
============================================
+ Coverage     82.76%   83.72%   +0.95%     
- Complexity      101      104       +3     
============================================
  Files            12       12              
  Lines           470      467       -3     
  Branches         85       84       -1     
============================================
+ Hits            389      391       +2     
+ Misses           57       52       -5     
  Partials         24       24              

Flag	Coverage Δ
unittests	83.72% <88.88%> (+0.95%)	:arrow_up:

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Impacted Files	Coverage Δ
...n/kotlin/io/github/petertrr/diffutils/DiffUtils.kt	75.75% <0.00%> (-2.37%)	:arrow_down:
...hub/petertrr/diffutils/algorithm/myers/PathNode.kt	75.00% <ø> (ø)
...kotlin/io/github/petertrr/diffutils/patch/Chunk.kt	66.66% <ø> (ø)
...n/io/github/petertrr/diffutils/text/StringUtils.kt	85.71% <0.00%> (+16.48%)	:arrow_up:
...ub/petertrr/diffutils/algorithm/myers/MyersDiff.kt	89.83% <88.88%> (ø)
...n/io/github/petertrr/diffutils/algorithm/Change.kt	100.00% <100.00%> (ø)
...kotlin/io/github/petertrr/diffutils/patch/Patch.kt	82.97% <100.00%> (+1.72%)	:arrow_up:
...github/petertrr/diffutils/text/DiffRowGenerator.kt	92.71% <100.00%> (+0.03%)	:arrow_up:

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