Provide `DpkgArchTable` class as a subset of `Dpkg::Arch`
This new class can answer questions like "Is amd64
included in
linux-any
?". It parses the dpkg tupletable
(with a fallback to
the triplettable
) and it also support loading the table from a
custom location.
Closes: https://bugs.debian.org/771058 Signed-off-by: Niels Thykier niels@thykier.net