Group AddAzureFunctionTool parameters into an options type

## Background

This tracks a review comment from #16042: https://github.com/microsoft/aspire/pull/16042#discussion_r3163355167

`AddAzureFunctionTool(...)` currently exposes eight user-supplied parameters, including paired queue endpoint/name values. That makes call sites hard to read and the API hard to evolve without adding more overloads.

## Proposal

Consider grouping the Azure Function tool configuration into an options/configuration type before this preview API ships stable.

Reference: https://learn.microsoft.com/dotnet/standard/design-guidelines/parameter-design

## Source

File: `src/Aspire.Hosting.Foundry/api/Aspire.Hosting.Foundry.cs`
PR: #16042
Comment: https://github.com/microsoft/aspire/pull/16042#discussion_r3163355167