Add Parameter support to common methods, such as AddDatabase

### 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.

It can be complex to pass in/ read configuration parameters for items such as database names or blob/ container names.

This is especially useful for multi-environment deployments and integration tests (example later).

### Describe the solution you'd like

Something like this:

```csharp
// --- Program.cs

builder.Services.AddOptionsWithValidateOnStart(AppHostOptions.SectionName);

// Configuration based....
var d = builder.AddParameterFromConfiguration(
"database-name",
AppHostOptions.SectionName + ":" + nameof(AppHostOptions.DatabaseName)
);

// Or an even nicer fluent option...
var d = builder.AddParameterFromConfiguration(
"database-name",
options => options.DatabaseName
);

...

// Use the parameter later...
var db = sql.AddDatabase("eventstore-sqlserver", d);

// --- AppHostOptions.cs

sealed class AppHostOptions
{
public const string SectionName = "AppHost:EventStore";

public string DatabaseName { get; set; } = "EventStoreDb";

... etc
}
```

### Additional context

This can be used to isolate test runs for parallal execution when the Sql Server integration is persistent. Here's a partial example using the (excellent) [`TUnit.Aspire`](https://www.nuget.org/packages/TUnit.Aspire) package...

```csharp
public sealed class AppHostFixture : AspireFixture
{
readonly string _databaseName = $"EventStoreDbTest_" + $"{Guid.NewGuid():N}"[..8];

protected override string[] Args => [$"AppHost:EventStore:DatabaseName={_databaseName}"];

...
}
```