Add Benchmarks regarding Coil Optimization

[YigitElma]

• Adds benchmarks for compute and jacobian of QuadraticFlux with a mixed coilset that is complex enough.
  • I tried to hit NFP, sym, and different coilset for loops of compute_magnetic_field
  • These tests will start running properly once the PR is merged, because those actions run under pull_request_target, that means they always use master code
• Fixes bug in plot_coils and CoilSet.from_symmetry that ignored the given check_intersection
• Adds check_intersection to coil set initializers
• Passes built LinearConstraintProjection object in perturb benchmarks to make it faster. We internally use it in this way anyway. Also, we benchmark LinearConstraintProjection.build() separately.

Optional/can be reverted:

• I removed the high-res equilibrium initialization benchmark since I think that is not too necessary and takes longer than the stuff we actually care about (like compute, jacobian etc)

[github-actions]

Memory benchmark result

|               Test Name                |      %Δ      |    Master (MB)     |      PR (MB)       |    Δ (MB)    |    Time PR (s)     |  Time Master (s)   |
| -------------------------------------- | ------------ | ------------------ | ------------------ | ------------ | ------------------ | ------------------ |
  test_objective_jac_w7x                 |   -2.04 %    |     4.024e+03      |     3.942e+03      |    -82.01    |       32.06        |       29.54        |
  test_proximal_jac_w7x_with_eq_update   |    1.45 %    |     6.514e+03      |     6.608e+03      |    94.19     |       154.59       |       155.13       |
  test_proximal_freeb_jac                |    0.15 %    |     1.332e+04      |     1.334e+04      |    20.32     |       79.73        |       81.43        |
  test_proximal_freeb_jac_blocked        |    1.08 %    |     7.645e+03      |     7.728e+03      |    82.85     |       69.69        |       69.18        |
  test_proximal_freeb_jac_batched        |   -0.15 %    |     7.670e+03      |     7.658e+03      |    -11.17    |       69.30        |       68.70        |
  test_proximal_jac_ripple               |    1.23 %    |     3.520e+03      |     3.563e+03      |    43.18     |       53.44        |       53.44        |
  test_proximal_jac_ripple_bounce1d      |    0.03 %    |     3.772e+03      |     3.773e+03      |     1.06     |       68.85        |       67.52        |
  test_eq_solve                          |    0.41 %    |     1.975e+03      |     1.983e+03      |     8.00     |       57.98        |       57.36        |

For the memory plots, go to the summary of Memory Benchmarks workflow and download the artifact.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.31%. Comparing base (24aa7b9) to head (5a93190).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2266      +/-   ##
==========================================
- Coverage   94.32%   94.31%   -0.02%     
==========================================
  Files         101      101              
  Lines       28866    28868       +2     
==========================================
- Hits        27228    27226       -2     
- Misses       1638     1642       +4     

Files with missing lines	Coverage Δ
desc/coils.py	97.58% <100.00%> (-0.38%)	⬇️
desc/plotting.py	95.41% <100.00%> (ø)

... and 2 files with indirect coverage changes

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