Add SYCL testing of expint
Add markers to forward decls
Add CUDA testing of expint
Fix static variable usage under NVRTC
Add NVRTC testing
Add configurable definition of complex
Add function aliases
Add GPU support to gegenbauer polynomials
Add SYCL testing of gegenbauer
Add NVCC testing of gegenbauer
Add NVRTC testing of gegenbauer
Add GPU support for hankel
Add SYCL testing of hankel
Add NVCC testing of cyl_hankel_1
Add comprehensive NVCC testing
Add NVRTC testing of cyl and sph hankel
Update docs
Fix writing cuda::std::complex<T> to stdout
Add GPU support to hermite
Add SYCL testing of hermite
Add CUDA testing of hermite
Add NVRTC testing of hermite
Add markers to hermite docs