chore: bring code up to latest group standards

[sbillinge]

closes #95
closes #96
closes #97

[codecov]

Codecov Report

Attention: Patch coverage is 59.70719% with 633 lines in your changes missing coverage. Please review.

Project coverage is 67.05%. Comparing base (4edfa96) to head (75f570d).
Report is 76 commits behind head on main.

Files with missing lines	Patch %	Lines
tests/test_sgconstraints.py	10.06%	134 Missing ⚠️
tests/test_objcrystparset.py	7.35%	126 Missing ⚠️
tests/test_pdf.py	43.97%	107 Missing ⚠️
tests/test_characteristicfunctions.py	17.47%	85 Missing ⚠️
tests/test_diffpyparset.py	16.66%	75 Missing ⚠️
tests/test_sas.py	18.05%	59 Missing ⚠️
tests/test_speed.py	14.28%	36 Missing ⚠️
tests/conftest.py	88.76%	10 Missing ⚠️
tests/test_fitresults.py	98.41%	1 Missing ⚠️

❗ There is a different number of reports uploaded between BASE (4edfa96) and HEAD (75f570d). Click for more details.

HEAD has 7 uploads less than BASE

Flag	BASE (4edfa96)	HEAD (75f570d)
	8	1

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #113       +/-   ##
===========================================
- Coverage   81.19%   67.05%   -14.14%     
===========================================
  Files          91       25       -66     
  Lines        7599     3160     -4439     
===========================================
- Hits         6170     2119     -4051     
+ Misses       1429     1041      -388     

Files with missing lines	Coverage Δ
tests/test_builder.py	100.00% <100.00%> (ø)
tests/test_constraint.py	96.96% <100.00%> (ø)
tests/test_contribution.py	99.51% <100.00%> (ø)
tests/test_equation.py	100.00% <100.00%> (ø)
tests/test_fitrecipe.py	99.49% <100.00%> (ø)
tests/test_literals.py	99.17% <100.00%> (ø)
tests/test_parameter.py	98.14% <100.00%> (ø)
tests/test_parameterset.py	94.73% <ø> (ø)
tests/test_profile.py	99.33% <100.00%> (ø)
tests/test_profilegenerator.py	97.95% <100.00%> (ø)
... and 15 more

... and 64 files with indirect coverage changes

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