Adding more type hints

[shimwell]

Proposed changes

Adding more type hints to the parametric components

[codecov]

Codecov Report

Merging #250 (6725d42) into develop (297a76b) will increase coverage by 0.56%.
The diff coverage is 95.71%.

❗ Current head 6725d42 differs from pull request most recent head 670a999. Consider uploading reports for the commit 670a999 to get more accurate results

@@             Coverage Diff             @@
##           develop     #250      +/-   ##
===========================================
+ Coverage    94.77%   95.33%   +0.56%     
===========================================
  Files           82       82              
  Lines         5507     5511       +4     
===========================================
+ Hits          5219     5254      +35     
+ Misses         288      257      -31     

Impacted Files	Coverage Δ
...etric_components/center_column_plasma_dependant.py	100.00% <ø> (ø)
...rametric_components/coolant_channel_ring_curved.py	100.00% <ø> (ø)
paramak/parametric_components/hollow_cube.py	100.00% <ø> (ø)
paramak/parametric_components/tokamak_plasma.py	100.00% <ø> (ø)
...tric_components/tokamak_plasma_plasmaboundaries.py	100.00% <ø> (ø)
...ic_components/toroidal_field_coil_round_corners.py	93.88% <ø> (ø)
...k/parametric_components/constant_thickness_dome.py	92.85% <70.00%> (+0.07%)	⬆️
.../parametric_components/blanket_cutter_parallels.py	100.00% <100.00%> (ø)
...amak/parametric_components/blanket_cutters_star.py	100.00% <100.00%> (ø)
paramak/parametric_components/blanket_fp.py	100.00% <100.00%> (ø)
... and 26 more

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[shimwell]

error appears to be unrelated to the PR and can be looked into separately

Encountered problems while solving:
-   - package moab-5.3.1-nompi_notempest_py38h11ddcca_100 requires hdf5 >=1.12.1,<1.12.2.0a0, but none of the providers can be installed