localrepo: architecture of package should be checked and support for non-native ones should be added
Currently we do not check if added package is of native architecture. We should do that.
That also introduced new problem and that is what if we want to use localrepo to maintain repository for non-native packages. This should be used for rootfs preparation on Omnia for Mox. We need some approach on how to maintain non-native architecture local repositories because of that.