Fix printing higher dimensional block sparse arrays

[mtfishman]

Fixes #73.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.51%. Comparing base (2b4ab96) to head (46aaa7b).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #74      +/-   ##
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+ Coverage   75.46%   75.51%   +0.04%     
==========================================
  Files          28       28              
  Lines        1072     1074       +2     
==========================================
+ Hits          809      811       +2     
  Misses        263      263              

Flag	Coverage Δ
docs	16.36% <0.00%> (-0.04%)	⬇️

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[lkdvos]

Looks like a clean fix to me. It might even make sense to keep that definition of isstored for SubArray, that does seem like how you would want to define that?

[mtfishman]

Looks like a clean fix to me. It might even make sense to keep that definition of isstored for SubArray, that does seem like how you would want to define that?

Are you suggesting defining it this way for any SubArray (i.e. make a generic definition in SparseArraysBase.jl)?

[mtfishman]

This is basically the same definition as getindex(::SubArray, I::Int...) and isassigned(::SubArray, I::Int...) so I guess this is a reasonable definition more generally.

[mtfishman]

I've moved the definition over to SparseArraysBase.jl, so this now relies on ITensor/SparseArraysBase.jl#44 getting merged and registered.