Migrate from dep to go module

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

vendor/k8s.io/cloud-provider/OWNERS

@@ -0,0 +1,40 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
+approvers:
+- mikedanese
+- dims
+- wlan0
+- andrewsykim
+- cheftako
+reviewers:
+- wojtek-t
+- deads2k
+- derekwaynecarr
+- vishh
+- mikedanese
+- liggitt
+- gmarek
+- davidopp
+- pmorie
+- sttts
+- quinton-hoole
+- dchen1107
+- saad-ali
+- zmerlynn
+- luxas
+- justinsb
+- eparis
+- piosz
+- jsafrane
+- dims
+- krousey
+- rootfs
+- freehan
+- jingxu97
+- wlan0
+- cheftako
+- andrewsykim
+- mcrute
+labels:
+- sig/cloud-provider
+- area/cloudprovider