New planet class

[bluescarni]

No description provided.

[codecov-commenter]

Codecov Report

Merging #16 (7edb354) into main (2877c85) will decrease coverage by 2.74%.
The diff coverage is 83.09%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #16      +/-   ##
==========================================
- Coverage   97.61%   94.87%   -2.74%     
==========================================
  Files          20       19       -1     
  Lines        1131     1230      +99     
==========================================
+ Hits         1104     1167      +63     
- Misses         27       63      +36     

Files	Coverage Δ
include/kep3/core_astro/convert_anomalies.hpp	94.11% <ø> (ø)
include/kep3/planet.hpp	100.00% <100.00%> (ø)
include/kep3/planets/jpl_lp.hpp	100.00% <ø> (ø)
include/kep3/planets/keplerian.hpp	100.00% <100.00%> (ø)
src/planet.cpp	100.00% <100.00%> (ø)
src/planets/jpl_lp.cpp	98.42% <ø> (ø)
src/planets/keplerian.cpp	98.01% <ø> (ø)
include/kep3/detail/tanuki.hpp	80.11% <80.11%> (ø)

[bluescarni]

@darioizzo as far as I am concerned this is good to go.

The Python bindings tests pass on my machine, however on the CI there seems to be a failure related to some dependency conflict in the environment file. Not sure if this is yet another spurious conda failure, but I do not think it is related to the code.

Note that the new planet class requires on Windows MSVC 2022 (which is the version anyway in use by conda currently), so I have changed the CI setup accordingly.

[darioizzo]

Fantastic, thanks! Merging this now as to start adopting early on the new backbone for planet.