treewide: introduce osbase package and move things around

All except localregistry moved from metropolis/pkg to osbase,
localregistry moved to metropolis/test as its only used there anyway.

Change-Id: If1a4bf377364bef0ac23169e1b90379c71b06d72
Reviewed-on: https://review.monogon.dev/c/monogon/+/3079
Tested-by: Jenkins CI
Reviewed-by: Serge Bazanski <serge@monogon.tech>
diff --git a/metropolis/node/kubernetes/containerd/BUILD.bazel b/metropolis/node/kubernetes/containerd/BUILD.bazel
index ef6606d..0c61925 100644
--- a/metropolis/node/kubernetes/containerd/BUILD.bazel
+++ b/metropolis/node/kubernetes/containerd/BUILD.bazel
@@ -7,7 +7,7 @@
     visibility = ["//metropolis/node/core:__subpackages__"],
     deps = [
         "//metropolis/node/core/localstorage",
-        "//metropolis/pkg/supervisor",
+        "//osbase/supervisor",
         "@com_github_containerd_containerd//:containerd",
         "@com_github_containerd_containerd//namespaces",
     ],