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/BUILD.bazel b/metropolis/node/core/BUILD.bazel
index 8605534..938a7d7 100644
--- a/metropolis/node/core/BUILD.bazel
+++ b/metropolis/node/core/BUILD.bazel
@@ -34,13 +34,13 @@
         "//metropolis/node/core/rpc/resolver",
         "//metropolis/node/core/time",
         "//metropolis/node/core/update",
-        "//metropolis/pkg/logtree",
-        "//metropolis/pkg/pstore",
-        "//metropolis/pkg/supervisor",
-        "//metropolis/pkg/sysctl",
-        "//metropolis/pkg/tpm",
         "//metropolis/proto/api",
         "//metropolis/version",
+        "//osbase/logtree",
+        "//osbase/pstore",
+        "//osbase/supervisor",
+        "//osbase/sysctl",
+        "//osbase/tpm",
         "//version",
         "@com_github_cenkalti_backoff_v4//:backoff",
         "@com_github_containerd_containerd//:containerd",