cloud/bmaas/bmdb: implement BMDB client metrics

This implements some basic BMDB metrics exported by any client code
using the BMDB.

It also enables their use in the Shepherd and BMSRV.

Change-Id: I1d5e82fd2c34a7bfd42f37fad540d69f7b23f347
Reviewed-on: https://review.monogon.dev/c/monogon/+/1600
Tested-by: Jenkins CI
Reviewed-by: Tim Windelschmidt <tim@monogon.tech>
diff --git a/cloud/shepherd/equinix/manager/BUILD.bazel b/cloud/shepherd/equinix/manager/BUILD.bazel
index 72924f3..1e1cb54 100644
--- a/cloud/shepherd/equinix/manager/BUILD.bazel
+++ b/cloud/shepherd/equinix/manager/BUILD.bazel
@@ -17,6 +17,7 @@
     deps = [
         "//cloud/agent/api",
         "//cloud/bmaas/bmdb",
+        "//cloud/bmaas/bmdb/metrics",
         "//cloud/bmaas/bmdb/model",
         "//cloud/lib/sinbin",
         "//cloud/shepherd/equinix/wrapngo",