MLJ integration via Tables.jl interface

[tpoisot]

Closes #83

⚠️ this is a mess

📖 https://poisotlab.github.io/SpeciesDistributionToolkit.jl/previews/PR84/

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 39 lines in your changes missing coverage. Please review.
✅ Project coverage is 36.40%. Comparing base (fdd6db8) to head (d83fcf7).
⚠️ Report is 1547 commits behind head on main.

Files with missing lines	Patch %	Lines
src/stack.jl	0.00%	39 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #84      +/-   ##
==========================================
- Coverage   37.56%   36.40%   -1.16%     
==========================================
  Files          39       40       +1     
  Lines        1230     1269      +39     
==========================================
  Hits          462      462              
- Misses        768      807      +39     

Flag	Coverage Δ
unittests	36.40% <0.00%> (-1.16%)	⬇️

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