Migrate from dep to go module

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

vendor/k8s.io/kubernetes/pkg/apis/extensions/BUILD

@@ -0,0 +1,45 @@
+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "doc.go",
+        "register.go",
+        "types.go",
+        "zz_generated.deepcopy.go",
+    ],
+    importpath = "k8s.io/kubernetes/pkg/apis/extensions",
+    deps = [
+        "//pkg/apis/apps:go_default_library",
+        "//pkg/apis/autoscaling:go_default_library",
+        "//pkg/apis/networking:go_default_library",
+        "//pkg/apis/policy:go_default_library",
+        "//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
+        "//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library",
+        "//staging/src/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [
+        ":package-srcs",
+        "//pkg/apis/extensions/fuzzer:all-srcs",
+        "//pkg/apis/extensions/install:all-srcs",
+        "//pkg/apis/extensions/v1beta1:all-srcs",
+        "//pkg/apis/extensions/validation:all-srcs",
+    ],
+    tags = ["automanaged"],
+)

vendor/k8s.io/kubernetes/pkg/apis/extensions/OWNERS

@@ -0,0 +1,40 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
+reviewers:
+- thockin
+- lavalamp
+- smarterclayton
+- wojtek-t
+- deads2k
+- brendandburns
+- derekwaynecarr
+- caesarxuchao
+- mikedanese
+- liggitt
+- nikhiljindal
+- erictune
+- pmorie
+- sttts
+- saad-ali
+- janetkuo
+- justinsb
+- ncdc
+- tallclair
+- mwielgus
+- soltysh
+- piosz
+- dims
+- errordeveloper
+- madhusudancs
+- rootfs
+- mml
+- resouer
+- mbohlool
+- david-mcmahon
+- therc
+- pweil-
+- mqliang
+- lukaszo
+- jianhuiz
+labels:
+- sig/apps