Add tools and missing workflows

[PhilippRue]

Fixes issue #43

[codecov]

Codecov Report

Merging #107 (c09e9f0) into develop (868bf4d) will increase coverage by 0.78%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop     #107      +/-   ##
===========================================
+ Coverage    75.92%   76.71%   +0.78%     
===========================================
  Files           36       38       +2     
  Lines         2077     2147      +70     
===========================================
+ Hits          1577     1647      +70     
  Misses         500      500              

Impacted Files	Coverage Δ
test_entrypoints.py	100.00% <0.00%> (ø)
tools/test_find_parent.py	100.00% <0.00%> (ø)
workflows/test_jij_wc.py	100.00% <0.00%> (ø)

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