Aspire Components APIs

[sebastienros]

Background and Motivation

See https://learn.microsoft.com/dotnet/aspire/get-started/aspire-overview#net-aspire-components

Proposed API

Since the API is non-trivial a specific pull-request was created: https://github.com/dotnet/aspire/pull/3503

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[amcasey]

@sebastienros Anything left to review here?