Move test templates to SDK repo

[Evangelink]

Fixes #44416

[Evangelink]

@marcpopMSFT I don't know if you have some acceptance tests that check the template can be created and if they automatically run all templates?

[marcpopMSFT]

@Evangelink search through this file to see if we're targeting the specific templates that were moved over: https://github.com/dotnet/sdk/blob/release/9.0.2xx/test/EndToEnd.Tests/ProjectBuildTests.cs#L342

I guess there's nothing that confirms it's using the templates you're inserting here versus some other version of the templates (say the stage 0 version). You'd have to review the binlog to confirm that I think.

[Evangelink]

@dotnet/templating-engine-maintainers This is ready for review.

There are many basic tests, it might be worth to add more for specific feature for test projects but we didn't have them previously so I don't think it should prevent merging.

[marcpopMSFT]

Did you confirm manually that the new templates are getting picked up in the zip and other installs? Can you add an update to the codeowners file?

Not sure what else we'd be reviewing here.

[Evangelink]

Did you confirm manually that the new templates are getting picked up in the zip and other installs?

I assumed that if the dotnet new tests were working it was all good but I will confirm that now from a fresh build.

Can you add an update to the codeowners file?

Done. Please review, given there is limited pattern support I kept template team for all changes to template and added us for the test related templates.

[Evangelink]

Templates are correctly included:

but it made me realize that I need to update code so we stop using/packing the test template:

[Evangelink]

Now it should be all good @marcpopMSFT

[Evangelink]

@marcpopMSFT I'd appreciate if we could move forward this PR because it's now causing conflicts every time the current templates gets inserted.