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/core/devmgr/BUILD.bazel b/metropolis/node/core/devmgr/BUILD.bazel
index 15b8065..bc4a293 100644
--- a/metropolis/node/core/devmgr/BUILD.bazel
+++ b/metropolis/node/core/devmgr/BUILD.bazel
@@ -6,8 +6,8 @@
     importpath = "source.monogon.dev/metropolis/node/core/devmgr",
     visibility = ["//visibility:public"],
     deps = [
-        "//metropolis/pkg/kmod",
-        "//metropolis/pkg/supervisor",
+        "//osbase/kmod",
+        "//osbase/supervisor",
         "@com_github_mdlayher_kobject//:kobject",
     ],
 )