add models and fix

[BayaneMdW]

add models of magnetopause and bow shock.
add tangent and normal to some of the boundaries models
change the swi base and change of coordinate function
add gipm base
change tilt function

[codecov-commenter]

Codecov Report

Merging #21 (7d877b6) into main (4204d3e) will decrease coverage by 2.39%.
The diff coverage is 8.33%.

@@            Coverage Diff             @@
##             main      #21      +/-   ##
==========================================
- Coverage   26.45%   24.05%   -2.40%     
==========================================
  Files           8        8              
  Lines         775      902     +127     
==========================================
+ Hits          205      217      +12     
- Misses        570      685     +115     

Flag	Coverage Δ
unittests	24.05% <8.33%> (-2.40%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
space/models/planetary.py	26.69% <6.91%> (-4.52%)	⬇️
space/coordinates/coordinates.py	25.30% <10.00%> (-3.74%)	⬇️
space/utils.py	28.57% <12.50%> (-4.77%)	⬇️
space/smath.py	19.44% <18.18%> (+3.81%)	⬆️

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