fix: allow "name" attribute of weightgroup

[jhgoh]

Resolves #76

  * take the weightgroup's type from the "name" attribute if it is given instead of the "type" attribute.

[codecov]

Codecov Report

Base: 67.28% // Head: 61.57% // Decreases project coverage by -5.70% ⚠️

Coverage data is based on head (49dbef8) compared to base (c16fe99).
Patch coverage: 0.00% of modified lines in pull request are covered.

❗ Current head 49dbef8 differs from pull request most recent head 04bc3aa. Consider uploading reports for the commit 04bc3aa to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #106      +/-   ##
==========================================
- Coverage   67.28%   61.57%   -5.71%     
==========================================
  Files           2        2              
  Lines         217      203      -14     
  Branches       57       57              
==========================================
- Hits          146      125      -21     
- Misses         64       68       +4     
- Partials        7       10       +3     

Flag	Coverage Δ
unittests-3.10	60.09% <0.00%> (-5.81%)	⬇️
unittests-3.6	58.79% <0.00%> (-5.83%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/pylhe/__init__.py	67.46% <0.00%> (-6.42%)	⬇️

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[eduardo-rodrigues]

@matthewfeickert, I tried to resolve the conflicts and believe this PR can now be closed given the fixes committed to master in the meantime. Then issue #76 can also be closed. Act as you see fit.