Add Cone Search Catalog Filter

[smcguire-cmu]

Change Description

Adds the filter_by_cone method to the Catalog class, which generates a new Catalog object with only pixels that overlap with a specified cone.

Fills out the TODO in the cone_search demo notebook.

closes #7

• My PR includes a link to the issue that I am addressing

Solution Description

Generates the pixels of the cone at the highest order in the catalog using healpy, forms a tree from the cone pixels and performs an inner catalog alignment against the pixel tree of the catalog. The aligned pixels are used to generate the new filtered catalog.

Code Quality

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• My code follows the code style of this project
• My code builds (or compiles) cleanly without any errors or warnings
• My code contains relevant comments and necessary documentation

Project-Specific Pull Request Checklists

New Feature Checklist

• I have added or updated the docstrings associated with my feature using the NumPy docstring format
• I have updated the tutorial to highlight my new feature (if appropriate)
• I have added unit/End-to-End (E2E) test cases to cover my new feature
• My change includes a breaking change
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[codecov]

Codecov Report

Merging #113 (05d1cd4) into main (550021f) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #113   +/-   ##
=======================================
  Coverage   99.85%   99.85%           
=======================================
  Files          44       45    +1     
  Lines        1382     1412   +30     
=======================================
+ Hits         1380     1410   +30     
  Misses          2        2           

Impacted Files	Coverage Δ
...catalog/association_catalog/association_catalog.py	100.00% <100.00%> (ø)
src/hipscat/catalog/catalog.py	100.00% <100.00%> (ø)
src/hipscat/pixel_math/cone_filter.py	100.00% <100.00%> (ø)
src/hipscat/pixel_tree/pixel_alignment.py	100.00% <100.00%> (ø)
src/hipscat/pixel_tree/pixel_tree.py	100.00% <100.00%> (ø)
src/hipscat/pixel_tree/pixel_tree_builder.py	100.00% <100.00%> (ø)

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[delucchi-cmu]

Thanks!