Update parameter graph to full DAG

[ConnorStoneAstro]

Updated parameter system allows for far more complex parameter graphs with a great deal of interaction and also user defined functions in between parameters. This allows for a number of powerful fitting tasks to be performed. These include:

• fitting an astrometric solution for all objects in an image
• imposing a functional form on parameters, such as a spatially varying PSF with spline interpolation
• linking parameters with different names (serious limitation of old system)
• Adding complex equality constraints (e.g. x must be y+5) instead of only strict equality

All tests run except for fitting methods which require significant updates to use the new parameter system.

[codecov[bot]]

Codecov Report

Merging #121 (6db3192) into main (29e418b) will increase coverage by 1.01%. The diff coverage is 92.29%.

@@            Coverage Diff             @@
##             main     #121      +/-   ##
==========================================
+ Coverage   76.81%   77.83%   +1.01%     
==========================================
  Files          78       80       +2     
  Lines        6954     6951       -3     
==========================================
+ Hits         5342     5410      +68     
+ Misses       1612     1541      -71     

Files	Coverage Δ
astrophot/__init__.py	20.45% <100.00%> (ø)
astrophot/fit/base.py	73.58% <100.00%> (+1.36%)	:arrow_up:
astrophot/fit/gradient.py	80.00% <100.00%> (+0.31%)	:arrow_up:
astrophot/fit/hmc.py	82.53% <100.00%> (+0.28%)	:arrow_up:
astrophot/fit/lm.py	83.50% <100.00%> (+2.99%)	:arrow_up:
astrophot/fit/mhmcmc.py	94.82% <ø> (ø)
astrophot/fit/nuts.py	98.36% <100.00%> (+0.02%)	:arrow_up:
astrophot/image/jacobian_image.py	76.05% <100.00%> (ø)
astrophot/image/wcs.py	96.57% <ø> (ø)
astrophot/image/window_object.py	90.30% <100.00%> (ø)
... and 24 more

... and 1 file with indirect coverage changes

:mega: We’re building smart automated test selection to slash your CI/CD build times. Learn more

[ConnorStoneAstro]

Ok, The full system seems to be working! Next I'm going to update the tutorials and add some demos of how to use the new system.

[ConnorStoneAstro]

Everything seems to be online. A new tutorial has been made and added to the AstroPhot-tutorials repo: https://github.com/Autostronomy/AstroPhot-tutorials/tree/params

Looks ready to go!

[ConnorStoneAstro]

Hopefully this will be the last giant 1000+ line update for a while!

[ConnorStoneAstro]

just pushed some updates to docstrings. I'll go through your comments in the morning. Thanks for reviewing so quickly!

[ConnorStoneAstro]

Ok, updated for the comments, going to add more tests next.

[ConnorStoneAstro]

Ok, new tests reach almost every line in the new param DAG stuff! Looks like this is ready to merge.