Build task for VS Team Services that sets permission on IIS Web Site, Web Application or subfolder.
Initial Version: 09/21/2016
https://docs.microsoft.com/en-us/azure/devops/extend/develop/integrate-build-task?view=azure-devops
npm install -g tfx-cli
restore VSCode to get tfx to work
tsc --init
tfx extension create --manifest-globs vss-extension.json