Adding extrude hollow reactangle

[shimwell]

Proposed changes

Adds a new parametric shape that is an extruded hollow rectangle

I still need to add tests and documentation to finish this PR

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Code refactoring
• Documentation Update (if none of the other choices apply)
• New tests

Checklist

• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[shimwell]

Added docs, images and tests

[shimwell]

[codecov]

Codecov Report

Merging #146 (6133663) into develop (372ff40) will increase coverage by 0.01%.
The diff coverage is 100.00%.

❗ Current head 6133663 differs from pull request most recent head 5344322. Consider uploading reports for the commit 5344322 to get more accurate results

@@             Coverage Diff             @@
##           develop     #146      +/-   ##
===========================================
+ Coverage    97.73%   97.75%   +0.01%     
===========================================
  Files           76       77       +1     
  Lines         4688     4720      +32     
===========================================
+ Hits          4582     4614      +32     
  Misses         106      106              

Impacted Files	Coverage Δ
.../parametric_components/blanket_cutter_parallels.py	100.00% <ø> (ø)
...amak/parametric_components/blanket_cutters_star.py	100.00% <ø> (ø)
...ak/parametric_components/center_column_cylinder.py	100.00% <ø> (ø)
paramak/parametric_components/extrude_rectangle.py	100.00% <ø> (ø)
paramak/reactor.py	88.10% <ø> (ø)
paramak/__init__.py	100.00% <100.00%> (ø)
.../parametric_components/extrude_hollow_rectangle.py	100.00% <100.00%> (ø)

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