Fix!: correct impact parameters

[fjebaker]

Still todo:

• [ ] documentation to reflect new mapping
• [ ] add explicit unit tests for impact parameter maps

[fjebaker]

Cunningham transfer function tests are still failing. These should be inspected before the test values are updated.

[codecov-commenter]

Codecov Report

Merging #108 (8202503) into main (5f039ea) will increase coverage by 1.96%. The diff coverage is 85.55%.

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@@            Coverage Diff             @@
##             main     #108      +/-   ##
==========================================
+ Coverage   65.70%   67.66%   +1.96%     
==========================================
  Files          53       53              
  Lines        2044     2066      +22     
==========================================
+ Hits         1343     1398      +55     
+ Misses        701      668      -33     

Impacted Files	Coverage Δ
src/accretion-geometry/bootstrap.jl	72.72% <ø> (ø)
src/tracing/charts.jl	93.54% <ø> (ø)
src/tracing/utility.jl	68.57% <66.66%> (+10.67%)	:arrow_up:
src/metrics/boyer-lindquist-fo.jl	97.43% <89.47%> (-2.57%)	:arrow_down:
...ransfer-functions/cunningham-transfer-functions.jl	87.58% <95.00%> (+24.67%)	:arrow_up:
src/rendering/rendering.jl	73.07% <100.00%> (+0.52%)	:arrow_up:
src/tracing/precision-solvers.jl	73.97% <100.00%> (ø)