Add an output flag to aspire init

[vsantele]

Is there an existing issue for this?

• I have searched the existing issues

Is your feature request related to a problem? Please describe the problem.

When I try to aspirify a existing dotnet solution, the CLI puts the AppHost and ServiceDefaults to the root diretory (or the one with the sln file?).
But my other projects are in a src folder.

Describe the solution you'd like

I want to select where to put these two projects, in the src folder for instance.

Something like aspire init --output src.

Additional context

No response

[MihuBot]

I'm a bot. Here is a possible related and/or duplicate issue (I may be wrong):

• AppHost and ServiceDefaults projects are only created in the directory where the solution file is located #756

[vsantele]

the suggestion is almost correct. But I think aspire has evolved a lot since 2023.
And the cli didn't exist at that time ^^