Adding vty-windows.

[chhackett]

Checklist:

• Meaningful commit message, eg add my-cool-package (please don't mention build-constraints.yml)
• At least 30 minutes have passed since uploading to Hackage
• If applicable, required system libraries are added to 02-apt-get-install.sh or 03-custom-install.sh
• (optional) Package is compatible with the latest version of all dependencies (Run cabal update && cabal outdated)
• (optional) Package have been verified to work with the latest nightly snapshot, e.g by running the verify-package script

The script runs virtually the following commands in a clean directory:

  stack unpack $package-$version # `-$version` is optional
  cd $package-$version
  rm -f stack.yaml && stack init --resolver nightly --ignore-subdirs
  stack build --resolver nightly --haddock --test --bench --no-run-benchmarks

[simonmichael]

Ping admins: needs approval perhaps ?

[simonmichael]

@chhackett: @chreekat approved the workflow for us. It failed, I think not because of your change; it may be that you should rebase on a newer/better version of stackage and try again ?

[simonmichael]

vty-windows still isn't appearing in stackage nightly; I took the liberty of adding a section for you @chhackett, in #7385 ; hopefully that will fix it.