extend DiskArrays.pad

[rafaqz]

This PR extends the new DiskArrays.pad for all AbstractDimArray so we can also extend regular dimensions at the same time we pad the array.

I'm not sure what should happen for non DiskArrays parent arrays - currently they will work but be slow. Using PaddedViews.j instead is an option when !isdisk(parent(dimarray)).

See DiskArrays PR: JuliaIO/DiskArrays.jl#219

[codecov]

Codecov Report

Attention: Patch coverage is 83.87097% with 5 lines in your changes missing coverage. Please review.

Project coverage is 84.30%. Comparing base (a5585f5) to head (76c28f2).
Report is 35 commits behind head on main.

Files with missing lines	Patch %	Lines
ext/DimensionalDataDiskArraysExt.jl	83.87%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #931      +/-   ##
==========================================
+ Coverage   83.66%   84.30%   +0.63%     
==========================================
  Files          47       52       +5     
  Lines        4653     4893     +240     
==========================================
+ Hits         3893     4125     +232     
- Misses        760      768       +8     

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