Please add AddDotNetAppResouce

### Is there an existing issue for this?

- [x] I have searched the existing issues

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

Use Case
- I want to deploy Aspire to my vps
- I want to be able to start stop resources via aspire dashboard
- I want to be able to see all logs metrics
- I'm aware of stand alone aspire dashboard but i think you can't do number 2 in the list

I notice for dotnet/aspnetcore, in development we will use ```AddProject```
in production, obviously there is no "csproj"

### Describe the solution you'd like

If there is "PythonAppResource", why not "DotNetAppResource" ?

The goal is when we use "DotNetAppResource", the environment variables needed for OTEL is configured automatically (and any other needed environment variables)

At this moment the workaround is using AddExecutable

### Additional context

I will not expose Aspire directly to internet
I will use another web app to access Aspire Dashboard securely