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/consensus/BUILD.bazel b/metropolis/node/core/consensus/BUILD.bazel
index 359b6dc..eeb8d3b 100644
--- a/metropolis/node/core/consensus/BUILD.bazel
+++ b/metropolis/node/core/consensus/BUILD.bazel
@@ -16,13 +16,13 @@
         "//metropolis/node/core/consensus/client",
         "//metropolis/node/core/identity",
         "//metropolis/node/core/localstorage",
-        "//metropolis/pkg/event",
-        "//metropolis/pkg/event/memory",
-        "//metropolis/pkg/logbuffer",
-        "//metropolis/pkg/logtree",
-        "//metropolis/pkg/logtree/unraw",
-        "//metropolis/pkg/pki",
-        "//metropolis/pkg/supervisor",
+        "//osbase/event",
+        "//osbase/event/memory",
+        "//osbase/logbuffer",
+        "//osbase/logtree",
+        "//osbase/logtree/unraw",
+        "//osbase/pki",
+        "//osbase/supervisor",
         "@io_etcd_go_etcd_client_v3//:client",
         "@io_etcd_go_etcd_server_v3//embed",
     ],
@@ -45,10 +45,10 @@
     deps = [
         "//metropolis/node/core/localstorage",
         "//metropolis/node/core/localstorage/declarative",
-        "//metropolis/pkg/logbuffer",
-        "//metropolis/pkg/logtree",
-        "//metropolis/pkg/supervisor",
         "//metropolis/test/util",
+        "//osbase/logbuffer",
+        "//osbase/logtree",
+        "//osbase/supervisor",
         "@com_github_google_go_cmp//cmp",
     ],
 )