Add DistributedArrays

[arnavk23]

Added DistributedArrays to Project.toml
Fixes #91

[codecov]

Codecov Report

❌ Patch coverage is 45.00000% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 23.32%. Comparing base (d314826) to head (ca39b42).
⚠️ Report is 28 commits behind head on main.

Files with missing lines	Patch %	Lines
src/distributed.jl	45.00%	11 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #181      +/-   ##
==========================================
+ Coverage   20.70%   23.32%   +2.61%     
==========================================
  Files           6        8       +2     
  Lines         792      819      +27     
==========================================
+ Hits          164      191      +27     
  Misses        628      628              

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[amontoison]

Helpers for support of DistributedArrays/DArray without adding a hard dependency.
Add DistributedArrays to Project.toml

It is a hard dependency with what you did and we don't want that.
It should be a package extension.

Add mumps_test_distributed_helpers.jl - tests skip when DistributedArrays is not available

It makes no sense, it could never happen in Julia that a package that is dependency is not available.
Probably a sentence generated by a LLM...

[arnavk23]

@amontoison everything done here.