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/metrics/BUILD.bazel b/metropolis/node/core/metrics/BUILD.bazel
index 9169ae6..6385bb8 100644
--- a/metropolis/node/core/metrics/BUILD.bazel
+++ b/metropolis/node/core/metrics/BUILD.bazel
@@ -15,7 +15,7 @@
         "//metropolis/node/core/curator/proto/api",
         "//metropolis/node/core/curator/watcher",
         "//metropolis/node/core/identity",
-        "//metropolis/pkg/supervisor",
+        "//osbase/supervisor",
     ],
 )
 
@@ -30,9 +30,9 @@
     deps = [
         "//metropolis/node",
         "//metropolis/node/core/curator/proto/api",
-        "//metropolis/pkg/freeport",
-        "//metropolis/pkg/supervisor",
         "//metropolis/test/util",
+        "//osbase/freeport",
+        "//osbase/supervisor",
         "@com_zx2c4_golang_wireguard_wgctrl//wgtypes",
         "@io_bazel_rules_go//go/runfiles:go_default_library",
     ],