osbase: move test packages under osbase/test

The cmd, freeport and socksproxy packages are only used in tests, and
are also intended to be only used in tests. This change moves these
packages under osbase/test.

Change-Id: I8fe679945990c295bdf822abfce56c25233c4588
Reviewed-on: https://review.monogon.dev/c/monogon/+/4564
Reviewed-by: Tim Windelschmidt <tim@monogon.tech>
Tested-by: Jenkins CI
diff --git a/osbase/test/socksproxy/BUILD.bazel b/osbase/test/socksproxy/BUILD.bazel
new file mode 100644
index 0000000..4ba8a71
--- /dev/null
+++ b/osbase/test/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/test/socksproxy",
+    visibility = ["//visibility:public"],
+)
+
+go_test(
+    name = "socksproxy_test",
+    srcs = ["socksproxy_test.go"],
+    embed = [":socksproxy"],
+    deps = ["@org_golang_x_net//proxy"],
+)