More concise way of adding dependencies

### 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.

Feedback from user study:

The syntax for adding dependencies in the apphost can get too long and verbose when needed to add more than a few services.

**Also worth noting this user was not able to recognize use cases where .WithReference and .WaitFor would need to be separate**

### Describe the solution you'd like

If there are multiple instances of services they want connected, user wanted to see:

`builder.AddDependencies(frontend, backendAPI);`
OR
`builder.AddDependencies(backendAPI, redisCache,postgresDatabase);`

INSTEAD OF

```
builder.AddProject("frontend")
.WithReference(backendAPI)
.WaitFor(backendAPI);
.WithReference(postgresDatabase)
.WaitFor(postgresDatabase)
.WithReference(redisCache)
.WaitFor(redisCache)
```

### Additional context

_No response_