Add conversion test

[codecov[bot]]

Codecov Report

Merging #94 into develop will increase coverage by 0.50%. The diff coverage is 100.00%.

@@              Coverage Diff              @@
##             develop      #94      +/-   ##
=============================================
+ Coverage      85.36%   85.86%   +0.50%     
+ Complexity       240      214      -26     
=============================================
  Files             34       33       -1     
  Lines            526      474      -52     
  Branches          33       30       -3     
=============================================
- Hits             449      407      -42     
+ Misses            54       46       -8     
+ Partials          23       21       -2     

Impacted Files	Coverage Δ	Complexity Δ
...ttooolbox/iunits/pace/MinutesPerHundredMeters.java	90.00% <100.00%> (+10.00%)	7.00 <1.00> (+1.00)
...g/sporttooolbox/iunits/speed/KilometerPerHour.java	93.33% <0.00%> (-2.83%)	11.00% <0.00%> (-8.00%)
.../sporttooolbox/calculators/DistanceCalculator.java
...ain/java/segelzwerg/sporttooolbox/iunits/Time.java	86.20% <0.00%> (+1.59%)	18.00% <0.00%> (-12.00%)	:arrow_up:
...erg/sporttooolbox/iunits/speed/MeterPerSecond.java	86.66% <0.00%> (+5.89%)	8.00% <0.00%> (-5.00%)	:arrow_up:
...va/segelzwerg/sporttooolbox/iunits/speed/Knot.java	92.85% <0.00%> (+6.19%)	10.00% <0.00%> (ø%)
...lzwerg/sporttooolbox/iunits/speed/MilePerHour.java	92.85% <0.00%> (+6.19%)	10.00% <0.00%> (ø%)

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