branchcache-v3: use more explicit header line The key-value approach is clearer and gives more rooms to have the format evolve in a clear way. It also provides extension (like topic) simpler way to extend the validation scheme. This is just a small evolution, the V3 format is still a work in progress.

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[workspace]

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members = ["hg-core", "hg-cpython", "rhg"]

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exclude = ["chg", "hgcli"]

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resolver = "2"