* Update JetBrains.Annotations to 2020.1.0.
* Update Microsoft.CodeAnalysis.CSharp.Scripting to v3.7.0.
* Update Microsoft.Extensions.DependencyInjection to v3.1.9.
* Update packages on the tests.
* Silence annoying warning from samples.
The EOL framework warning was annoying as hell so disabled it on all projects.