Rename Loop to Strand

[wtbarnes]

Fixes #96

Also includes a few minor packaging infrastructure fixups.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 69.56522% with 42 lines in your changes missing coverage. Please review.

Project coverage is 44.77%. Comparing base (0174c4d) to head (23c07a0).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
synthesizAR/skeleton.py	69.09%	17 Missing ⚠️
synthesizAR/util/util.py	35.29%	11 Missing ⚠️
synthesizAR/instruments/base.py	60.00%	6 Missing ⚠️
synthesizAR/instruments/hinode.py	50.00%	6 Missing ⚠️
synthesizAR/interfaces/ebtel/ebtel.py	71.42%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #98      +/-   ##
==========================================
+ Coverage   43.09%   44.77%   +1.67%     
==========================================
  Files          34       39       +5     
  Lines        1949     2135     +186     
==========================================
+ Hits          840      956     +116     
- Misses       1109     1179      +70     

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