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/osbase/socksproxy/BUILD.bazel b/osbase/socksproxy/BUILD.bazel
new file mode 100644
index 0000000..2365f12
--- /dev/null
+++ b/osbase/socksproxy/BUILD.bazel
@@ -0,0 +1,18 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+go_library(
+    name = "socksproxy",
+    srcs = [
+        "protocol.go",
+        "socksproxy.go",
+    ],
+    importpath = "source.monogon.dev/osbase/socksproxy",
+    visibility = ["//visibility:public"],
+)
+
+go_test(
+    name = "socksproxy_test",
+    srcs = ["socksproxy_test.go"],
+    embed = [":socksproxy"],
+    deps = ["@org_golang_x_net//proxy"],
+)