Expose a subset of graphviz.Graph.render options inside Node.draw

[liamhuber]

Now you can optionally save the rendered graph in the node's working directory (by default) right when you make the .draw() call.

Closes #41

[github-actions]

👈 Launch a binder notebook on branch pyiron/pyiron_workflow/draw_more

[coveralls]

Pull Request Test Coverage Report for Build 7039563774

• 11 of 18 (61.11%) changed or added relevant lines in 1 file are covered.
• 24 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+2.5%) to 88.517%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pyiron_workflow/node.py	11	18	61.11%

Files with Coverage Reduction	New Missed Lines	%
pyiron_workflow/node.py	4	94.43%
node.py	20	89.84%

Totals
Change from base Build 7014940719:	2.5%
Covered Lines:	3469
Relevant Lines:	3919

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💛 - Coveralls

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +3.52% (target: -1.00%)	85.71%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (4487bb3)	1990	1570	78.90%
Head commit (c99e381)	1996 (+6)	1645 (+75)	82.42% (+3.52%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#94)	7	6	85.71%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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