Add Uno platform

[Pival81]

Tool Name: Uno platform

Link to the tool website: https://platform.uno

• https://github.com/dotnet/maui

• [x] This tool supports creating desktop apps on more than one desktop operating system (Windows, Linux, OSX)

Anything else you want to add:

• A relatively new framework which aims to bring UWP and WinUI to other platforms, even wasm and there is an experimental support for Linux.

OS:

Lang:

Pros: *

Cons: *