Add PackageReference directly from Game Studio

Is your feature request related to a problem? Please describe.
Right now, to add a NuGet package, user need to go back and forth between GameStudio and Visual Studio, and then reload project in GameStudio.
Also, users without Visual Studio can't add packages easily.
Current steps are described in this workflow: https://doc.xenko.com/latest/en/manual/nuget/consume-packages.html

Describe the solution you'd like
Ability to search and add NuGet packages to Xenko projects directly from GameStudio.
Visual Studio NuGet UI/UX could be a source of inspiration.

Of course, we could also design it differently, this is just a suggestion.

Note: possibly, part of NuGet browse UI might be reused to also look for new project templates later.

Describe alternatives you've considered
Use VisualStudio, but this involves many steps and users without Visual Studio can't add Package Reference easily.