add factory method to create Overload with different arguments

[alancao-uber]

#110

[codecov]

Codecov Report

Merging #121 (e35fbf1) into main (5ae657f) will decrease coverage by 0.01%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##               main     #121      +/-   ##
============================================
- Coverage     79.96%   79.95%   -0.02%     
  Complexity     1790     1790              
============================================
  Files           100      100              
  Lines          7776     7777       +1     
  Branches       1132     1132              
============================================
  Hits           6218     6218              
- Misses         1039     1040       +1     
  Partials        519      519              

Flag	Coverage Δ
java	79.95% <0.00%> (-0.02%)	⬇️

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Impacted Files	Coverage Δ
...jectnessie/cel/interpreter/functions/Overload.java	66.66% <0.00%> (-0.69%)	⬇️

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