Add LMC/SMC option

[mcoughlin]

One potential survey is recurring LMC/SMC survey... this PR tacks these observations onto the end of the 1/4 orbits scheduled.

[codecov]

Codecov Report

Merging #74 (2621ab5) into main (21539ad) will decrease coverage by 0.08%.
The diff coverage is 1.92%.

@@            Coverage Diff             @@
##             main      #74      +/-   ##
==========================================
- Coverage   29.83%   29.75%   -0.09%     
==========================================
  Files          35       35              
  Lines        1713     1721       +8     
==========================================
+ Hits          511      512       +1     
- Misses       1202     1209       +7     

Impacted Files	Coverage Δ
dorado/scheduling/scripts/simsurvey.py	7.24% <1.92%> (+0.12%)	⬆️

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[mcoughlin]

Unit tests pass. Merging.