[SYSTEMDS-3949] Add native Delta Lake frame read/write via Delta Kernel

[Baunsgaard]

Extend the native Delta Lake support (#2511) from matrices to frames, reading and writing Delta Lake tables through the Spark-free Delta Kernel library on the single-node CP path. DML read/write with format="delta" now works for frames, discovering schema, column names, and dimensions directly from the table.

Stacked on #2511 and should merge after it. Append/overwrite semantics, distributed execution, and time travel remain out of scope

[codecov]

Codecov Report

❌ Patch coverage is 86.74699% with 55 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.65%. Comparing base (384a8dc) to head (8feb495).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...che/sysds/runtime/io/FrameReaderDeltaParallel.java	81.60%	18 Missing and 14 partials ⚠️
.../org/apache/sysds/runtime/io/FrameReaderDelta.java	90.62%	0 Missing and 15 partials ⚠️
.../org/apache/sysds/runtime/io/FrameWriterDelta.java	89.18%	4 Missing and 4 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2515      +/-   ##
============================================
+ Coverage     71.56%   71.65%   +0.09%     
- Complexity    49110    49370     +260     
============================================
  Files          1575     1582       +7     
  Lines        189793   190700     +907     
  Branches      37235    37411     +176     
============================================
+ Hits         135816   136641     +825     
- Misses        43480    43519      +39     
- Partials      10497    10540      +43     

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