dotnet kernel for C# and F# #948

Job	Run time
Build jupyterlab (no kernels)	5m 1s
Build example-bash-minimal kernel	3m 57s
Build example-c-minimal kernel	3m 55s
Build example-dotnet-csharp kernel	3m 55s
Build example-dotnet-fsharp kernel	3m 57s
Build example-elm-minimal kernel	3m 45s
Build example-go-minimal kernel	3m 33s
Build example-haskell-minimal kernel	58m 23s
Build example-javascript-minimal kernel	3m 40s
Build example-julia-minimal kernel	7m 46s
Build example-nix-minimal kernel	3m 45s
Build example-ocaml-minimal kernel	7m 54s
Build example-postgres-minimal kernel	4m 14s
Build example-python-minimal kernel	3m 31s
Build example-python-native kernel	3m 35s
Build example-python-science kernel	3m 39s
Build example-python-stable kernel	5m 26s
Build example-r-minimal kernel	3m 44s
Build example-rust-minimal kernel	3m 55s
Build example-scala-minimal kernel	4m 2s
Build example-typescript-minimal kernel	31m 24s
Build example-zsh-minimal kernel	3m 54s
Test a template	0s
Build docs	0s
Build all kernels	0s
Build devshell	0s
	2h 56m 55s

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