[SYSTEMDS-3891] Add Generic OOC Reduce

[janniklinde]

This patch adds a generic OOC reduce primitives and wires it to TSMMOOCInstruction for the single output tile case.

Assisted-by: AI

[codecov]

Codecov Report

❌ Patch coverage is 79.80769% with 21 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.43%. Comparing base (1cc9c09) to head (ac21664).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...sds/runtime/ooc/primitives/ReduceOOCPrimitive.java	73.23%	14 Missing and 5 partials ⚠️
...ache/sysds/runtime/ooc/memory/CachedAllowance.java	75.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2593      +/-   ##
============================================
- Coverage     71.43%   71.43%   -0.01%     
- Complexity    50461    50467       +6     
============================================
  Files          1629     1630       +1     
  Lines        195586   195659      +73     
  Branches      38129    38135       +6     
============================================
+ Hits         139715   139764      +49     
- Misses        44916    44930      +14     
- Partials      10955    10965      +10     

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