Allow installation of IDEasy via winget

[hohwille]

As a Windows user, I want to be able to install IDEasy via winget so that I can install it as easy as winget IDEasy.

See also #420

[leonrohne27]

Manifest is created, but we have to wait for our installer to be finished to create a PR to the Microsoft Community Windows Package Manager manifest repository

[ducminh02]

microsoft/winget-pkgs#353861 (comment)