Bootstrap schema.graphql file from graphql endpoint

[byme8]

It would be nice to have the ability to bootstrap schema.graphql file via ZeroQL Cli. The StrawberryShake has a similar feature, and it works well. I guess a nice place to start the investigation will be here: https://github.com/ChilliCream/hotchocolate/blob/main/src/StrawberryShake/Tooling/src/dotnet-graphql/IntrospectionHelper.cs