Fix incorrect perm, generalize some constructors

[mtfishman]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 32.83%. Comparing base (920f4c3) to head (105fb97).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/abstractnameddimsarray.jl	50.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #24      +/-   ##
==========================================
+ Coverage   32.68%   32.83%   +0.15%     
==========================================
  Files          14       14              
  Lines         664      667       +3     
==========================================
+ Hits          217      219       +2     
- Misses        447      448       +1     

Flag	Coverage Δ
docs	32.73% <66.66%> (+0.15%)	⬆️

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