Add novas_planet_for_name()

[attipaci]

Also:

• Additional argument checks for novas_calceph(), and related tests.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.65%. Comparing base (5082dca) to head (f5170c4).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #87   +/-   ##
=======================================
  Coverage   99.65%   99.65%           
=======================================
  Files           8        8           
  Lines        2888     2904   +16     
  Branches      554      561    +7     
=======================================
+ Hits         2878     2894   +16     
  Partials       10       10           

Flag	Coverage Δ
unittests	99.65% <100.00%> (+<0.01%)	⬆️

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

Files with missing lines	Coverage Δ
src/super.c	100.00% <100.00%> (ø)

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