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/cli/metroctl/cmd_install.go b/metropolis/cli/metroctl/cmd_install.go
index fc463b4..992da3e 100644
--- a/metropolis/cli/metroctl/cmd_install.go
+++ b/metropolis/cli/metroctl/cmd_install.go
@@ -17,8 +17,8 @@
 	cpb "source.monogon.dev/metropolis/proto/common"
 
 	"source.monogon.dev/metropolis/cli/metroctl/core"
-	"source.monogon.dev/metropolis/pkg/blkio"
-	"source.monogon.dev/metropolis/pkg/fat32"
+	"source.monogon.dev/osbase/blkio"
+	"source.monogon.dev/osbase/fat32"
 )
 
 var installCmd = &cobra.Command{