Automatic reload of configuration file when running on-prem

[yorek]

Would be great to have a switch on the CLI, something like --watch that will automatically reload the configuration file (and thus re-generate the in-memory schema) whenever the file is changed. Something like https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet-watch

That would greatly improve development velocity.

[aaronburtle]

Duplicate issue with #67