Further TF Coil Fixes

[katie-taylor]

Proposed changes

Same issue as with TFCoilsRectangle, inner leg overlap causing construction error. Raised by issue #780

Types of changes

What types of changes does your code introduce to the Paramak?

• [x] 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

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code.

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

Further comments

[billingsley-john]

All looks great, thanks very much for finding and fixing this issue!

[codecov[bot]]

Codecov Report

Merging #782 (8529c56) into develop (b0e8c9a) will increase coverage by 0.00%. The diff coverage is 100.00%.

@@           Coverage Diff            @@
##           develop     #782   +/-   ##
========================================
  Coverage    95.25%   95.25%           
========================================
  Files           73       73           
  Lines         4782     4784    +2     
========================================
+ Hits          4555     4557    +2     
  Misses         227      227           

Impacted Files	Coverage Δ
...tric_components/toroidal_field_coil_coat_hanger.py	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update b0e8c9a...8529c56. Read the comment docs.

[billingsley-john]

Tests pass locally