add fill_rectangle_custom

[joamatab]

• add gf.fill.fill_rectangle_custom which allows you to fill a region with a custom cell

[sourcery-ai]

Sourcery Code Quality Report

❌  Merging this PR will decrease code quality in the affected files by 2.45%.

Quality metrics	Before	After	Change
Complexity	5.89 ⭐	6.36 ⭐	0.47 👎
Method Length	127.00 😞	137.31 😞	10.31 👎
Working memory	10.06 😞	10.42 😞	0.36 👎
Quality	56.47% 🙂	54.02% 🙂	-2.45% 👎

Other metrics	Before	After	Change
Lines	437	489	52

Changed files	Quality Before	Quality After	Quality Change
gdsfactory/__init__.py	89.96% ⭐	89.90% ⭐	-0.06% 👎
gdsfactory/fill.py	53.95% 🙂	51.83% 🙂	-2.12% 👎

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

File	Function	Complexity	Length	Working Memory	Quality	Recommendation
gdsfactory/fill.py	fill_rectangle	13 🙂	383 ⛔	14 😞	32.30% 😞	Try splitting into smaller methods. Extract out complex expressions
gdsfactory/fill.py	fill_rectangle_custom	8 ⭐	249 ⛔	12 😞	43.85% 😞	Try splitting into smaller methods. Extract out complex expressions
gdsfactory/fill.py	_rasterize_polygons	3 ⭐	217 ⛔	10 😞	54.21% 🙂	Try splitting into smaller methods. Extract out complex expressions
gdsfactory/fill.py	fill_cell_rectangle	4 ⭐	136 😞	10 😞	60.48% 🙂	Try splitting into smaller methods. Extract out complex expressions
gdsfactory/fill.py	_expand_raster	3 ⭐	123 😞	10 😞	63.02% 🙂	Try splitting into smaller methods. 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!

[codecov]

Codecov Report

Merging #1392 (70b19a8) into main (7273399) will decrease coverage by 0.07%.
The diff coverage is 22.58%.

@@            Coverage Diff             @@
##             main    #1392      +/-   ##
==========================================
- Coverage   69.49%   69.42%   -0.07%     
==========================================
  Files         366      366              
  Lines       21913    21942      +29     
  Branches     3141     3150       +9     
==========================================
+ Hits        15229    15234       +5     
- Misses       5781     5805      +24     
  Partials      903      903              

Impacted Files	Coverage Δ
gdsfactory/fill.py	66.20% <20.00%> (-12.43%)	⬇️
gdsfactory/__init__.py	94.11% <100.00%> (+0.11%)	⬆️

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