Feature/hw filtering

[dr-bonez]

@elvece the registry must honor the following new query params (in addition to the old ones for backwards compatibility)

arch (for /package endpoints) -> hardware.arch
arch (for /eos endpoints) -> os.arch
eos-version -> os.version
eos-version-compat -> os.compat
hardware.ram: numeric (bytes) must be greater than manifest.hardware-requirements.ram
hardware.device.<class>: can be present multiple times, one of them must match manifest.hardware-requirements.<class> if present in manifest

make sure to ignore query params that are not relevant for an endpoint (don't error on unknown query params)