THIS IS WORK IN PROGRESS, DO NOT MERGE UNTIL IS FULLY READY FOR INCLUSION. I only submitted this for early reviews and comments.
After this draft is accepted (as a draft) discussions will need to take place to proceed in the inclusion of .NET Core.
The new included packages are the .NET Core 5.0 runtime and SDK. Guidelines for maintainance/rebuilds are described in the README.md.
As for the previous versions of .NET Core I'd suggest only building the runtime instead of doing the whole tarball process again.
Signed-off-by: Martin Reboredo <email@example.com>