Fix shapes not being correctly propagated from SVG

[samkhal]

Previously shapes were not correctly propagated, and rectangle nodes would show up as ellipses (the default shape). Adds logic to set the shape when we parse the svg.

[sourcery-ai[bot]]

Sourcery Code Quality Report

✅  Merging this PR will increase code quality in the affected files by 0.41%.

Quality metrics	Before	After	Change
Complexity	4.48 ⭐	4.21 ⭐	-0.27 👍
Method Length	55.31 ⭐	57.12 ⭐	1.81 👎
Working memory	7.44 🙂	7.33 🙂	-0.11 👍
Quality	72.79% 🙂	73.20% 🙂	0.41% 👍

Other metrics	Before	After	Change
Lines	144	163	19

Changed files	Quality Before	Quality After	Quality Change
graphviz2drawio/mx/Node.py	75.78% ⭐	74.67% 🙂	-1.11% 👎
graphviz2drawio/mx/NodeFactory.py	58.96% 🙂	57.94% 🙂	-1.02% 👎
test/test_graphs.py	86.42% ⭐	86.23% ⭐	-0.19% 👎

Here are some functions in these files that still need a tune-up:

File	Function	Complexity	Length	Working Memory	Quality	Recommendation
graphviz2drawio/mx/NodeFactory.py	NodeFactory.from_svg	14 🙂	185 😞	11 😞	44.48% 😞	Try splitting into smaller methods. Extract out complex expressions
graphviz2drawio/mx/Node.py	Node.__init__	0 ⭐	61 ⭐	10 😞	74.75% 🙂	Extract out complex expressions

Legend and Explanation

The emojis denote the absolute quality of the code:

• ⭐ excellent
• 🙂 good
• 😞 poor
• ⛔ very poor

The 👍 and 👎 indicate whether the quality has improved or gotten worse with this pull request.

---

Please see our documentation here for details on how these metrics are calculated.

We are actively working on this report - lots more documentation and extra metrics to come!

Help us improve this quality report!

[hbmartin]

Thank you!