Dockerfile directory structure changes

[MichaelSimons]

Dockerfile directory structure changes

The Dockerfile directories have been re-organized to group the Dockerfiles by the docker repository the images are pushed to. The directory structure now aligns with the image tag names.

Details

The Dockerfiles used to be stored in directories with the following pattern:

<.net version>/<repo>/<distro>

Examples

Tag	Dockerfile
dotnet/framework/aspnet:4.7.2-windowsservercore-ltsc2019	4.7.2/aspnet/windowsservercore-ltsc2019/Dockerfile
dotnet/framework/sdk:4.8-windowsservercore-1909	4.8/sdk/windowsservercore-1909/Dockerfile
dotnet/framework/runtime:3.5-windowsservercore-2004	3.5/runtime/windowsservercore-2004/Dockerfile
dotnet/framework/wcf:4.7.1-windowsservercore-ltsc2016	4.7.1/wcf/windowsservercore-ltsc2016/Dockerfile

The Dockerfiles are now stored in directories with the following pattern:

src/<repo>/<.net version>/<distro>

Examples

Tag	Dockerfile
dotnet/framework/aspnet:4.7.2-windowsservercore-ltsc2019	src/aspnet/4.7.2/windowsservercore-ltsc2019/Dockerfile
dotnet/framework/sdk:4.8-windowsservercore-1909	src/sdk/4.8/windowsservercore-1909/Dockerfile
dotnet/framework/runtime:3.5-windowsservercore-2004	src/runtime/3.5/windowsservercore-2004/Dockerfile
dotnet/framework/wcf:4.7.1-windowsservercore-ltsc2016	src/wcf/4.7.1/windowsservercore-ltsc2016/Dockerfile

This is an organizational change only. It has no impact on the .NET docker images. This change will break links to the Dockerfiles that are not digest specific. See #596 and #597 for additional details.