[c++] Remove ArrayBuffers from SOMAArray

[nguyenv]

Issue and/or context:

[sc-54744]

#2975

This is the first of multiple PRs that will be split out from above

Changes:

The ArrayBuffers are now fully managed by ManagedQuery and not SOMAArray

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.87%. Comparing base (ff2eb5b) to head (35e4d27).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2979      +/-   ##
==========================================
+ Coverage   89.73%   89.87%   +0.14%     
==========================================
  Files          39       39              
  Lines        4080     4080              
==========================================
+ Hits         3661     3667       +6     
+ Misses        419      413       -6     

Flag	Coverage Δ
python	89.87% <ø> (+0.14%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
python_api	89.87% <ø> (+0.14%)	⬆️
libtiledbsoma	∅ <ø> (∅)

[johnkerl]

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