GEP: Mesh Representation

[keithmattix]

What would you like to be added:
As the GAMMA initiative seeks to create a model for service mesh implementations within Gateway API, it is necessary to have a mechanism for representing a mesh (follow link for definition) using the Gateway API.

This GEP covers the work to design and implement this mechanism.

As @shaneutt originally suggested, the first step will be implementing a provisional GEP that sets out the terms of what we're doing - the "What" and "Why" of the solution, and then once we're on the same page, we'll talk more about the "How".

Why this is needed:
Without a way to represent a mesh using Gateway API, no other work can continue.

[keithmattix]

/kind gep

[keithmattix]

/area mesh

[k8s-ci-robot]

@keithmattix: The label(s) area/mesh cannot be applied, because the repository doesn't have them.

In response to this:

/area mesh

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[keithmattix]

I've drafted a Google doc for more fluid discussion of this GEP.

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/lifecycle stale

[youngnick]

/remove-lifecycle stale

/lifecycle frozen
since this will stay until we do a lot more on GAMMA work.

[k8s-triage-robot]

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/lifecycle stale

[k8s-triage-robot]

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/lifecycle rotten