New ktlint rules

[3flex]

• EnumEntryNameCase
• NoEmptyFirstLineInMethodBlock

Both are from the ktlint experimental rule set so not enabled by default.

[codecov-io]

Codecov Report

Merging #2243 into master will increase coverage by 0.04%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master    #2243      +/-   ##
============================================
+ Coverage     81.38%   81.42%   +0.04%     
- Complexity     2074     2081       +7     
============================================
  Files           343      345       +2     
  Lines          5984     5993       +9     
  Branches       1086     1086              
============================================
+ Hits           4870     4880      +10     
  Misses          532      532              
+ Partials        582      581       -1

Impacted Files	Coverage Δ	Complexity Δ
...rmatting/wrappers/NoEmptyFirstLineInMethodBlock.kt	100% <100%> (ø)	2 <2> (?)
...ch/detekt/formatting/wrappers/EnumEntryNameCase.kt	100% <100%> (ø)	2 <2> (?)
...ab/arturbosch/detekt/formatting/KtLintMultiRule.kt	87.75% <100%> (+0.52%)	6 <0> (ø)	⬇️
...turbosch/detekt/rules/style/UnusedPrivateMember.kt	93.47% <0%> (ø)	5% <0%> (ø)	⬇️
...osch/detekt/rules/bugs/WrongEqualsTypeParameter.kt	100% <0%> (ø)	10% <0%> (+3%)	⬆️
.../gitlab/arturbosch/detekt/rules/MethodSignature.kt	70% <0%> (+10%)	0% <0%> (ø)	⬇️

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