Add lunar eclipse script

[wtgee]

This add the lunar eclipse script that was used in 2021

[codecov]

Codecov Report

Attention: Patch coverage is 36.36364% with 7 lines in your changes missing coverage. Please review.

Project coverage is 70.28%. Comparing base (f665383) to head (3fd676c).
Report is 6 commits behind head on develop.

Files with missing lines	Patch %	Lines
src/panoptes/pocs/utils/cli/mount.py	36.36%	7 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1296      +/-   ##
===========================================
- Coverage    70.36%   70.28%   -0.09%     
===========================================
  Files          101      101              
  Lines         8568     8584      +16     
  Branches       719      723       +4     
===========================================
+ Hits          6029     6033       +4     
- Misses        2389     2400      +11     
- Partials       150      151       +1     

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