Add missing DefaultArrayInterface methods

[lkdvos]

This PR adds some of the methods for DefaultArrayInterface that were erroring because there was no AbstractArrayInterface fallback.

I'm still not sure if this needs to be implemented with Base.invoke or not, but the tests are not complaining?

[mtfishman]

Great, thanks!

I'm still not sure if this needs to be implemented with Base.invoke or not, but the tests are not complaining?

That's good, probably we should avoid using invoke if we can so let's try this out and see how it goes.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 8 lines in your changes missing coverage. Please review.

Project coverage is 38.85%. Comparing base (d194ece) to head (8d0ecd4).

Files with missing lines	Patch %	Lines
src/defaultarrayinterface.jl	0.00%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #22      +/-   ##
==========================================
- Coverage   39.86%   38.85%   -1.02%     
==========================================
  Files           9        9              
  Lines         306      314       +8     
==========================================
  Hits          122      122              
- Misses        184      192       +8     

Flag	Coverage Δ
docs	37.69% <0.00%> (-0.99%)	⬇️

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[mtfishman]

Can you add some tests? I know I haven't been great about testing this package but there is no time like the present to start!

[mtfishman]

@lkdvos can you move this PR over to https://github.com/ITensor/DerivableInterfaces.jl?