Merge pull request #772 from melMass/develop

fix: ⚡️ nuget avalonia url

fix asbuild version info.

fix package extract.

Revert "make packager work."

remove docker image

fix package name.

update shell.

fix build.

use version file.

generate asbuild nuget package

make avalon build a dotnet tool that is easily installed.

make packager work.

fix symlinks

notify windows users that packages may not extract properly, advise to run as admin or turn developer mode on.