[14.0] Remove Rust resource

[afscrome]

In 13.6, Rust is now a native resource type in Aspire.Hosting.Rust. We should remove the community toolkit version.

Bacon should still remain in the community toolkit for now - microsoft/aspire#19376 .

[afscrome]

Rust package is still preview https://github.com/microsoft/aspire/blob/22bee5e1266b7b66ff53008957dde86efb370c79/src/Aspire.Hosting.Rust/Aspire.Hosting.Rust.csproj#L8 - this change may not be fully appropiate until that package goes GA.

[aaronpowell]

If Bacon is staying, we should rebrand that package as a .Extensions and it goes in there, building on top of the official Rust hosting integration.

[afscrome]

There is an open issue to add bacon support upstream, but it's not there in 13.6.

Let's see closer to 14's release, but I'd avoid renaming to .Extensions, if we're just going to end up deprecating the renamed package one release later.

[aaronpowell]

It might make sense to drop the Toolkit version to obsolete/deprecated when the official ships in 13.6, even if it is preview as an official package.