Feature wishlist

The following features are planned:

• Full benchmarking of both performance and accuracy to enable a more informed choice of solar position algorithm for a given application.
• Add support for multithreading. This can be implemented at the interface level, so all algorithms can benefit.
• Add guide to implement a new solar position algorithm, explaining the interface design.
• Add extension for ModelingToolkit.jl. There needs to be a way to integrate solar position functions (azimuth, zenith) into a ModelingToolkit.jl model. Example name: SolarPositionModelingToolkitExt.
• Arbitrary precision computations
• Implementation of remaining solar position algorithms that appear in solposx and pvlib.
• Runic.jl code formatting.
• JuliaC compatibility so we can compile this library. See https://github.com/fredrikekre/Runic.jl/tree/master/juliac for an example.
• Reactant.jl extension so we can run on CPU/GPU/TPU
• Improved trigonometric accuracy by using evalpoly and related functions

The issue names no repository files or tests. Start by reviewing the linked JuliaC compatibility example and the Reactant.jl extension requirement, then inspect the package structure to determine where those integrations belong. Done means the two unchecked wishlist items have working support and validation.