Add support for getting system information

[frenck]

Proposed Changes

Adds support for retrieving system information

[sourcery-ai]

Sourcery Code Quality Report

❌  Merging this PR will decrease code quality in the affected files by 1.05%.

Quality metrics	Before	After	Change
Complexity	1.20 ⭐	0.94 ⭐	-0.26 👍
Method Length	40.45 ⭐	44.48 ⭐	4.03 👎
Working memory	5.82 ⭐	5.79 ⭐	-0.03 👍
Quality	82.05% ⭐	81.00% ⭐	-1.05% 👎

Other metrics	Before	After	Change
Lines	343	423	80

Changed files	Quality Before	Quality After	Quality Change
src/pvo/init.py	96.17% ⭐	95.84% ⭐	-0.33% 👎
src/pvo/models.py	92.83% ⭐	92.41% ⭐	-0.42% 👎
src/pvo/pvoutput.py	74.71% 🙂	76.41% ⭐	1.70% 👍
tests/test_pvoutput.py	83.76% ⭐	81.10% ⭐	-2.66% 👎

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

File	Function	Complexity	Length	Working Memory	Quality	Recommendation
src/pvo/pvoutput.py	PVOutput._request	6 ⭐	128 😞	9 🙂	61.53% 🙂	Try splitting into smaller methods
tests/test_pvoutput.py	test_get_system	0 ⭐	133 😞	6 ⭐	73.90% 🙂	Try splitting into smaller methods

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.

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