Update generate.py and regenerate operators

generate/generate.py

generate/requirements.txt

operators.toml

operators/curl_curl/CMakeLists.txt

operators/curl_curl/N1E1ElementwiseCurlCurl.cpp

operators/curl_curl/N1E1ElementwiseCurlCurl.hpp

...ntwiseCurlCurl_apply_N1E1ElementwiseCurlCurl_macro_3D.cpp

...agonalOperatorValues_N1E1ElementwiseCurlCurl_macro_3D.cpp

...ntwiseCurlCurl_apply_N1E1ElementwiseCurlCurl_macro_3D.cpp

...agonalOperatorValues_N1E1ElementwiseCurlCurl_macro_3D.cpp

...iseCurlCurl_toMatrix_N1E1ElementwiseCurlCurl_macro_3D.cpp

operators/diffusion/CMakeLists.txt

operators/diffusion/P1ElementwiseDiffusion.cpp

operators/diffusion/P1ElementwiseDiffusion.hpp

operators/diffusion/P2ElementwiseDiffusion.cpp

operators/diffusion/P2ElementwiseDiffusion.hpp

operators/diffusion/P2ElementwiseDiffusionAnnulusMap.cpp

operators/diffusion/P2ElementwiseDiffusionAnnulusMap.hpp

...s/diffusion/P2ElementwiseDiffusionIcosahedralShellMap.cpp

...s/diffusion/P2ElementwiseDiffusionIcosahedralShellMap.hpp