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/cli/dbg/BUILD.bazel b/metropolis/cli/dbg/BUILD.bazel
index 46ac991..39f19a3 100644
--- a/metropolis/cli/dbg/BUILD.bazel
+++ b/metropolis/cli/dbg/BUILD.bazel
@@ -6,9 +6,9 @@
     importpath = "source.monogon.dev/metropolis/cli/dbg",
     visibility = ["//visibility:private"],
     deps = [
-        "//metropolis/pkg/logtree",
         "//metropolis/proto/api",
         "//metropolis/proto/common",
+        "//osbase/logtree",
         "@io_k8s_cli_runtime//pkg/genericclioptions",
         "@io_k8s_component_base//cli",
         "@io_k8s_kubectl//pkg/cmd",