Add Agent Skills for Updating from .Net Framework to .Net 10 skills for web, winforms, and console

[aligneddev]

Create Agent skills for modernization from .Net Framework to .Net 10.
I looked through https://github.com/dotnet/skills/tree/main/plugins/dotnet-upgrade/skills and don't see a mention to Framework

Each process is different so I suggest a different skill for Web, WinForms and Console apps. I have found Web projects to be much more difficult than console apps

Bonus: Then bundle these up into an upgrade agent as suggested in #249.

Question: Would this approach be an improvement over the existing App Modernization tool in Visual Studio?

End Goals:

• Be able to migrate from .Net Framework 3.5+ to .Net 10
• Fully migrate to Dependency Injection
• Use the latest approaches
• Create a list of possible issues with breaking changes for the Engineer to address.
• Have building runnable software at the end

[ViktorHofer]

cc @danmoseley - I think this would make a lot of sense but the skills / agent might be quite complex.