proposed feature for .net aspire

[danmoseley]

Prior art published from their own repos --
".NET Aspire" https://github.com/NikiforovAll/devcontainer-features
".NET Aspire Daily Builds" https://github.com/ElanHasson/devcontainer-features
Thank you @NikiforovAll and @ElanHasson for publishing these!

These happen to be at the top of the list:

Both of these use the old way to install .NET Aspire, based on "dotnet workload". This only works with Aspire 8.0. From Aspire 9.0 onwards, this is no longer relevant. Anyone using Aspire today will likely want 9.0 or later.

I considered offering PR's to update each of them, but it seems to me that it would be better to have a single devcontainer feature for .NET Aspire which handled both scenarios plus arbitrary versions (>=9.0). This is that.

Merging this would require that the existing features be unpublished when this was merged, or this uses a different name. @NikiforovAll and @ElanHasson what would you think of replacing yours with a combined one?

cc @joperezr @davidfowl

When merged it could replace this line in the Aspire repo

[danmoseley]

cc @joshspicer as he wrote the dotnet one (thanks)

[ElanHasson]

Hey @danmoseley!

I'm cool with that, hopefully it'll be an official feature 😎

Let me know what you'd like me to do and when.

[danmoseley]

tests pass locally; ready for review.