Add qfm surface functionality

[dpanici]

Resolve #1162

• [ ] add tutorial for this
• [x] allow ToroidalFlux to accept FourierRZToroidalSurface so that we can specify the toroidal flux through the QFM (we can do the vector potential method on the surface just fine so this should be easy, and there is no plasma current to consider either)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 95.58%. Comparing base (2741269) to head (82ed185). Report is 1740 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1264   +/-   ##
=======================================
  Coverage   95.57%   95.58%           
=======================================
  Files          96       96           
  Lines       24405    24484   +79     
=======================================
+ Hits        23325    23402   +77     
- Misses       1080     1082    +2     

Files with missing lines	Coverage Δ
desc/objectives/__init__.py	100.00% <ø> (ø)
desc/objectives/_coils.py	99.27% <100.00%> (+0.12%)	:arrow_up:
desc/optimize/optimizer.py	97.12% <100.00%> (-0.02%)	:arrow_down:

... and 2 files with indirect coverage changes

[github-actions[bot]]

|             benchmark_name             |         dt(%)          |         dt(s)          |        t_new(s)        |        t_old(s)        | 
| -------------------------------------- | ---------------------- | ---------------------- | ---------------------- | ---------------------- |
 test_build_transform_fft_midres         |     +5.15 +/- 4.48     | +3.00e-02 +/- 2.61e-02 |  6.13e-01 +/- 2.3e-02  |  5.83e-01 +/- 1.3e-02  |
 test_build_transform_fft_highres        |     +2.82 +/- 2.98     | +2.65e-02 +/- 2.80e-02 |  9.66e-01 +/- 1.5e-02  |  9.40e-01 +/- 2.4e-02  |
 test_equilibrium_init_lowres            |     +0.81 +/- 4.48     | +3.03e-02 +/- 1.67e-01 |  3.76e+00 +/- 8.5e-02  |  3.73e+00 +/- 1.4e-01  |
 test_objective_compile_atf              |     +0.56 +/- 3.80     | +4.26e-02 +/- 2.89e-01 |  7.67e+00 +/- 1.2e-01  |  7.62e+00 +/- 2.6e-01  |
 test_objective_compute_atf              |     +1.38 +/- 4.29     | +1.42e-04 +/- 4.39e-04 |  1.04e-02 +/- 4.2e-04  |  1.02e-02 +/- 1.3e-04  |
 test_objective_jac_atf                  |     +1.53 +/- 4.49     | +2.81e-02 +/- 8.23e-02 |  1.86e+00 +/- 7.1e-02  |  1.83e+00 +/- 4.2e-02  |
 test_perturb_1                          |     +1.03 +/- 2.06     | +1.38e-01 +/- 2.77e-01 |  1.36e+01 +/- 1.5e-01  |  1.34e+01 +/- 2.3e-01  |
 test_proximal_jac_atf                   |     -0.03 +/- 1.67     | -2.36e-03 +/- 1.32e-01 |  7.94e+00 +/- 8.4e-02  |  7.94e+00 +/- 1.0e-01  |
 test_proximal_freeb_compute             |     -0.67 +/- 2.48     | -1.31e-03 +/- 4.86e-03 |  1.94e-01 +/- 4.8e-03  |  1.96e-01 +/- 1.0e-03  |
 test_build_transform_fft_lowres         |     +1.97 +/- 4.65     | +1.02e-02 +/- 2.41e-02 |  5.28e-01 +/- 2.3e-02  |  5.18e-01 +/- 7.7e-03  |
 test_equilibrium_init_medres            |     +0.72 +/- 1.62     | +2.97e-02 +/- 6.64e-02 |  4.13e+00 +/- 6.0e-02  |  4.10e+00 +/- 2.9e-02  |
 test_equilibrium_init_highres           |     +0.44 +/- 1.11     | +2.38e-02 +/- 5.95e-02 |  5.39e+00 +/- 4.9e-02  |  5.37e+00 +/- 3.4e-02  |
 test_objective_compile_dshape_current   |     +0.38 +/- 1.32     | +1.46e-02 +/- 5.08e-02 |  3.86e+00 +/- 3.9e-02  |  3.85e+00 +/- 3.3e-02  |
 test_objective_compute_dshape_current   |     -0.16 +/- 1.96     | -6.01e-06 +/- 7.18e-05 |  3.65e-03 +/- 4.8e-05  |  3.65e-03 +/- 5.3e-05  |
 test_objective_jac_dshape_current       |     +3.70 +/- 9.49     | +1.47e-03 +/- 3.79e-03 |  4.14e-02 +/- 2.4e-03  |  3.99e-02 +/- 2.9e-03  |
 test_perturb_2                          |     -0.42 +/- 1.65     | -7.90e-02 +/- 3.08e-01 |  1.86e+01 +/- 1.9e-01  |  1.87e+01 +/- 2.4e-01  |
 test_proximal_freeb_jac                 |     -0.06 +/- 1.14     | -4.67e-03 +/- 8.51e-02 |  7.47e+00 +/- 5.3e-02  |  7.48e+00 +/- 6.6e-02  |
 test_solve_fixed_iter                   |     +0.13 +/- 56.75    | +6.68e-03 +/- 2.88e+00 |  5.08e+00 +/- 2.1e+00  |  5.07e+00 +/- 2.0e+00  |

[dpanici]

make a new objective for this specifically

[dpanici]

update if #1205 is merged first

[review-notebook-app[bot]]

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