[feat]: virtual packages #3105
Description
Allow services to specify satisfies for other package ids to indicate they fully implement the api of the other package, but are not the same package (not a flavor: cannot migrate from it). This also allows specifying satisfies for package ids that do not exist: these can be used as virtual packages that represent apis that are subsets of what some packages offer (i.e. openai-openapi@1.3.0)
If there are multiple packages that satisfy a virtual package id, StartOS should provide the user a way to select which one to prefer.
Start9 should maintain an official list of virtual package ids and documentation on what they are expected to support.