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/installer/test/BUILD.bazel b/metropolis/installer/test/BUILD.bazel
index 0f3583a..7f71218 100644
--- a/metropolis/installer/test/BUILD.bazel
+++ b/metropolis/installer/test/BUILD.bazel
@@ -22,8 +22,8 @@
     deps = [
         "//metropolis/cli/metroctl/core",
         "//metropolis/node/build/mkimage/osimage",
-        "//metropolis/pkg/cmd",
         "//metropolis/proto/api",
+        "//osbase/cmd",
         "@com_github_diskfs_go_diskfs//:go-diskfs",
         "@com_github_diskfs_go_diskfs//disk",
         "@com_github_diskfs_go_diskfs//partition/gpt",