implement split merge logic

[bgraedel]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 38.59348% with 358 lines in your changes missing coverage. Please review.

Project coverage is 55.15%. Comparing base (17dbff3) to head (0b7bd56).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
arcos4py/plotting/_plotting.py	7.93%	232 Missing ⚠️
arcos4py/tools/_detect_events.py	61.70%	111 Missing and 15 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #25      +/-   ##
==========================================
- Coverage   59.90%   55.15%   -4.75%     
==========================================
  Files          14       14              
  Lines        1616     2183     +567     
  Branches      276      395     +119     
==========================================
+ Hits          968     1204     +236     
- Misses        554      873     +319     
- Partials       94      106      +12     

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