update BUILD files

vendor/github.com/google/cadvisor/container/BUILD

@@ -6,6 +6,7 @@ go_library(
         "container.go",
         "factory.go",
     ],
+    importpath = "github.com/google/cadvisor/container",
     visibility = ["//visibility:public"],
     deps = [
         "//vendor/github.com/golang/glog:go_default_library",

vendor/github.com/google/cadvisor/container/common/BUILD

@@ -8,6 +8,7 @@ go_library(
         "helpers.go",
         "inotify_watcher.go",
     ],
+    importpath = "github.com/google/cadvisor/container/common",
     visibility = ["//visibility:public"],
     deps = [
         "//vendor/github.com/golang/glog:go_default_library",

vendor/github.com/google/cadvisor/container/crio/BUILD

@@ -7,6 +7,7 @@ go_library(
         "factory.go",
         "handler.go",
     ],
+    importpath = "github.com/google/cadvisor/container/crio",
     visibility = ["//visibility:public"],
     deps = [
         "//vendor/github.com/golang/glog:go_default_library",

vendor/github.com/google/cadvisor/container/docker/BUILD

@@ -8,6 +8,7 @@ go_library(
         "factory.go",
         "handler.go",
     ],
+    importpath = "github.com/google/cadvisor/container/docker",
     visibility = ["//visibility:public"],
     deps = [
         "//vendor/github.com/blang/semver:go_default_library",

vendor/github.com/google/cadvisor/container/libcontainer/BUILD

@@ -4,6 +4,7 @@ go_library(
     name = "go_default_library",
     srcs = ["helpers.go"],
     cgo = True,
+    importpath = "github.com/google/cadvisor/container/libcontainer",
     visibility = ["//visibility:public"],
     deps = [
         "//vendor/github.com/golang/glog:go_default_library",

vendor/github.com/google/cadvisor/container/raw/BUILD

@@ -6,6 +6,7 @@ go_library(
         "factory.go",
         "handler.go",
     ],
+    importpath = "github.com/google/cadvisor/container/raw",
     visibility = ["//visibility:public"],
     deps = [
         "//vendor/github.com/golang/glog:go_default_library",

vendor/github.com/google/cadvisor/container/rkt/BUILD

@@ -8,6 +8,7 @@ go_library(
         "handler.go",
         "helpers.go",
     ],
+    importpath = "github.com/google/cadvisor/container/rkt",
     visibility = ["//visibility:public"],
     deps = [
         "//vendor/github.com/blang/semver:go_default_library",

vendor/github.com/google/cadvisor/container/systemd/BUILD

@@ -3,6 +3,7 @@ load("@io_bazel_rules_go//go:def.bzl", "go_library")
 go_library(
     name = "go_default_library",
     srcs = ["factory.go"],
+    importpath = "github.com/google/cadvisor/container/systemd",
     visibility = ["//visibility:public"],
     deps = [
         "//vendor/github.com/golang/glog:go_default_library",