[Feature]: Add framework badge for .NET nanoFramework

[josesimoes]

Related Problem

The new look of NuGet gallery added badges for the various frameworks in the packages listing, which is great.
Just that it's missing the badge for .NET nanoFramework... 😉 Currently it's defaulting to .NET Framework.

The Elevator Pitch

.NET nanoFramework has been assigned a TFM some time ago. Support for it has been added to nuget CLI. So it seems kind of logical that there is a label for it.

Additional Context and Details

TFM: dotnet/designs#208
nuget CLI: NuGet/NuGet.Client#3943 and NuGet/NuGet.Client#4401

[JonDouglas]

We only support the three major generations as a top-level badge(.NET Framework, .NET Core, .NET). In the future, we will consider adding platforms and more TFMs.

If the asset is under a netnano folder, it should appear in the Frameworks tab. But it will not appear at the top due to what I mentioned above. Double check the contents of the package as we check for assets under specific folders.

[josesimoes]

Hey @JonDouglas !

Understood. Please add this to the suggestion box as it would be helpful for .NET nanoFramework developers to be able to identify and/or filter NuGet packages that are OK to use in their projects.