Stacker

[RainerHeintzmann]

This adds some code to stack data based on the alignment routine.

A fully working version can be seen at this commit which was an original PR that was succesively splitted:
RainerHeintzmann@67c80f1

[codecov]

Codecov Report

❌ Patch coverage is 0% with 96 lines in your changes missing coverage. Please review.
✅ Project coverage is 41.46%. Comparing base (43e9fd4) to head (60fcd48).
⚠️ Report is 58 commits behind head on main.

Files with missing lines	Patch %	Lines
src/stacker.jl	0.00%	61 Missing ⚠️
src/utils.jl	0.00%	35 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##              main      #30       +/-   ##
============================================
- Coverage   100.00%   41.46%   -58.54%     
============================================
  Files            5        6        +1     
  Lines           68      164       +96     
============================================
  Hits            68       68               
- Misses           0       96       +96     

Flag	Coverage Δ
unittests	41.46% <0.00%> (-58.54%)	⬇️

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[icweaver]

This recent post may be of interest: https://discourse.julialang.org/t/ann-bayeredimages-jl-working-with-raw-color-images-in-julia/136660

[RainerHeintzmann]

Thanks for the link to the discusssion. If I find some time, I will also try to see, if I can adapt the Stacker and Drizzle stuff to your new Ransac implementation.

[icweaver]

Just doing some bookkeeping. Closing this PR and #33 now that AstroStacker.jl exists.

Happy to explore #29 for the com_psf bit. Thanks for your contributions!