Add pigeons as a interface package

[codecov[bot]]

Codecov Report

Base: 54.89% // Head: 0.03% // Decreases project coverage by -54.86% :warning:

Coverage data is based on head (bf41518) compared to base (c82dd86). Patch coverage: 0.00% of modified lines in pull request are covered.

:exclamation: Current head bf41518 differs from pull request most recent head d213a18. Consider uploading reports for the commit d213a18 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #208 +/- ## ========================================== - Coverage 54.89% 0.03% -54.86% ========================================== Files 31 31 Lines 2995 2954 -41 ========================================== - Hits 1644 1 -1643 - Misses 1351 2953 +1602 ``` | [Impacted Files](https://codecov.io/gh/ptiede/Comrade.jl/pull/208?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede) | Coverage Δ | | |---|---|---| | [src/bayes/bayes.jl](https://codecov.io/gh/ptiede/Comrade.jl/pull/208?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede#diff-c3JjL2JheWVzL2JheWVzLmps) | `0.00% <0.00%> (-78.00%)` | :arrow_down: | | [src/observations/ehtim.jl](https://codecov.io/gh/ptiede/Comrade.jl/pull/208?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede#diff-c3JjL29ic2VydmF0aW9ucy9laHRpbS5qbA==) | `0.00% <0.00%> (-89.05%)` | :arrow_down: | | [src/models/modelimage/dft\_alg.jl](https://codecov.io/gh/ptiede/Comrade.jl/pull/208?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede#diff-c3JjL21vZGVscy9tb2RlbGltYWdlL2RmdF9hbGcuamw=) | `0.00% <0.00%> (-87.88%)` | :arrow_down: | | [src/models/modifiers.jl](https://codecov.io/gh/ptiede/Comrade.jl/pull/208?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede#diff-c3JjL21vZGVscy9tb2RpZmllcnMuamw=) | `0.00% <0.00%> (-85.40%)` | :arrow_down: | | [src/models/combinators.jl](https://codecov.io/gh/ptiede/Comrade.jl/pull/208?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede#diff-c3JjL21vZGVscy9jb21iaW5hdG9ycy5qbA==) | `0.00% <0.00%> (-81.09%)` | :arrow_down: | | [src/Comrade.jl](https://codecov.io/gh/ptiede/Comrade.jl/pull/208?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede#diff-c3JjL0NvbXJhZGUuamw=) | `20.00% <0.00%> (-80.00%)` | :arrow_down: | | [src/models/modelimage/cache.jl](https://codecov.io/gh/ptiede/Comrade.jl/pull/208?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede#diff-c3JjL21vZGVscy9tb2RlbGltYWdlL2NhY2hlLmps) | `0.00% <0.00%> (-75.00%)` | :arrow_down: | | [src/models/modelimage/nuft.jl](https://codecov.io/gh/ptiede/Comrade.jl/pull/208?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede#diff-c3JjL21vZGVscy9tb2RlbGltYWdlL251ZnQuamw=) | `0.00% <0.00%> (-74.42%)` | :arrow_down: | | [src/models/geometric\_models.jl](https://codecov.io/gh/ptiede/Comrade.jl/pull/208?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede#diff-c3JjL21vZGVscy9nZW9tZXRyaWNfbW9kZWxzLmps) | `0.00% <0.00%> (-72.83%)` | :arrow_down: | | [src/observations/observations.jl](https://codecov.io/gh/ptiede/Comrade.jl/pull/208?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede#diff-c3JjL29ic2VydmF0aW9ucy9vYnNlcnZhdGlvbnMuamw=) | `0.00% <0.00%> (-70.84%)` | :arrow_down: | | ... and [17 more](https://codecov.io/gh/ptiede/Comrade.jl/pull/208?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede) | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Paul+Tiede)

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