Include flattening algorithm

[samwaseda]

Now I included the algorithm to flatten nested workflows:

wf_dict = example_workflow.serialize_workflow()
wf_dict["inputs"] = {...} # The input parameters have to be set somehow
G = fwf.get_workflow_graph(wf_dict)
wf_dict_flat = fwf.graph_to_wf_dict(G, flatten=True)

This gives you a flat representation instead of a nested workflow (if example_workflow is nested). I included one very simple test in the unit tests for a proof of concept, but I think really interesting will be when control flows are added (which will be hopefully stacked PRs)

[github-actions]

👈 Launch a binder notebook on branch pyiron/flowrep/flattening

[codecov]

Codecov Report

❌ Patch coverage is 94.11765% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 98.82%. Comparing base (ba60397) to head (fa07a19).
⚠️ Report is 38 commits behind head on main.

Files with missing lines	Patch %	Lines
flowrep/workflow.py	94.11%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #113      +/-   ##
==========================================
- Coverage   98.95%   98.82%   -0.13%     
==========================================
  Files          27       27              
  Lines        1908     1965      +57     
==========================================
+ Hits         1888     1942      +54     
- Misses         20       23       +3     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.