Addng docker layer caching, pep8 changes, mypy changes

[shimwell]

Proposed changes

This PR adds docker layer caching to the building yml for the docker images. This should speed up the docker images and make them easier to build locally. the second stage uses FROM and this makes use of a cache instead of downloading from the ghcr.

MyPy was used to fix a few type errors in the type hinting

Pep has been improved by replacing the autopep with black.

Also added some examples to produce render image s of reactors

Mainly refactoring

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

• Pep8 applied
• Unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[shimwell]

Looks like I have a few suggestions from codiga to fix in the new render examples

[codecov]

Codecov Report

Merging #137 (65a36ef) into main (bee4f04) will increase coverage by 0.17%.
The diff coverage is 97.03%.

@@            Coverage Diff             @@
##             main     #137      +/-   ##
==========================================
+ Coverage   97.56%   97.73%   +0.17%     
==========================================
  Files          76       76              
  Lines        4717     4689      -28     
==========================================
- Hits         4602     4583      -19     
+ Misses        115      106       -9     

Impacted Files	Coverage Δ
...ric_components/blanket_constant_thickness_arc_v.py	100.00% <ø> (ø)
...mak/parametric_components/port_cutters_circular.py	100.00% <ø> (ø)
...ametric_reactors/single_null_submersion_reactor.py	100.00% <ø> (ø)
paramak/parametric_shapes/extruded_spline_shape.py	100.00% <ø> (ø)
...ramak/parametric_shapes/extruded_straight_shape.py	100.00% <ø> (ø)
paramak/parametric_shapes/rotate_spline_shape.py	100.00% <ø> (ø)
paramak/parametric_shapes/rotate_straight_shape.py	100.00% <ø> (ø)
paramak/parametric_shapes/sweep_spline_shape.py	100.00% <ø> (ø)
paramak/parametric_components/vacuum_vessel.py	90.62% <50.00%> (ø)
...k/parametric_components/vacuum_vessel_inner_leg.py	89.23% <72.72%> (ø)
... and 67 more

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