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/BUILD.bazel b/metropolis/node/kubernetes/BUILD.bazel
index 854f6c3..08666ab 100644
--- a/metropolis/node/kubernetes/BUILD.bazel
+++ b/metropolis/node/kubernetes/BUILD.bazel
@@ -33,14 +33,14 @@
         "//metropolis/node/kubernetes/pki",
         "//metropolis/node/kubernetes/plugins/kvmdevice",
         "//metropolis/node/kubernetes/reconciler",
-        "//metropolis/pkg/event",
-        "//metropolis/pkg/event/memory",
-        "//metropolis/pkg/fileargs",
-        "//metropolis/pkg/fsquota",
-        "//metropolis/pkg/logtree",
-        "//metropolis/pkg/loop",
-        "//metropolis/pkg/supervisor",
         "//metropolis/proto/api",
+        "//osbase/event",
+        "//osbase/event/memory",
+        "//osbase/fileargs",
+        "//osbase/fsquota",
+        "//osbase/logtree",
+        "//osbase/loop",
+        "//osbase/supervisor",
         "@com_github_container_storage_interface_spec//lib/go/csi",
         "@io_k8s_api//core/v1:core",
         "@io_k8s_api//storage/v1:storage",