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/time/BUILD.bazel b/metropolis/node/core/time/BUILD.bazel
index fb9af73..f113153 100644
--- a/metropolis/node/core/time/BUILD.bazel
+++ b/metropolis/node/core/time/BUILD.bazel
@@ -7,7 +7,7 @@
     visibility = ["//visibility:public"],
     deps = [
         "//metropolis/node",
-        "//metropolis/pkg/fileargs",
-        "//metropolis/pkg/supervisor",
+        "//osbase/fileargs",
+        "//osbase/supervisor",
     ],
 )
diff --git a/metropolis/node/core/time/time.go b/metropolis/node/core/time/time.go
index f57e892..3e37a0c 100644
--- a/metropolis/node/core/time/time.go
+++ b/metropolis/node/core/time/time.go
@@ -18,8 +18,8 @@
 	"strings"
 
 	"source.monogon.dev/metropolis/node"
-	"source.monogon.dev/metropolis/pkg/fileargs"
-	"source.monogon.dev/metropolis/pkg/supervisor"
+	"source.monogon.dev/osbase/fileargs"
+	"source.monogon.dev/osbase/supervisor"
 )
 
 // Service implements the time service. See package documentation for further