Add Kubernetes auth providers (#2147)

* Import auth providers for K8s

* Vendor updates for K8s auth providers

* Remove Azure since it is not compiling

* Update vendor to remove Azure dependencies

vendor/cloud.google.com/go/regen-gapic.sh

@@ -0,0 +1,77 @@
+#!/bin/bash
+
+# This script generates all GAPIC clients in this repo.
+# One-time setup:
+#   cd path/to/googleapis # https://github.com/googleapis/googleapis
+#   virtualenv env
+#   . env/bin/activate
+#   pip install googleapis-artman
+#   deactivate
+#
+# Regenerate:
+#   cd path/to/googleapis
+#   . env/bin/activate
+#   $GOPATH/src/cloud.google.com/go/regen-gapic.sh
+#   deactivate
+#
+# Being in googleapis directory is important;
+# that's where we find YAML files and where artman puts the "artman-genfiles" directory.
+#
+# NOTE: This script does not generate the "raw" gRPC client found in google.golang.org/genproto.
+# To do that, use the regen.sh script in the genproto repo instead.
+
+set -ex
+
+APIS=(
+google/iam/artman_iam_admin.yaml
+google/cloud/asset/artman_cloudasset_v1beta1.yaml
+google/iam/credentials/artman_iamcredentials_v1.yaml
+google/cloud/bigquery/datatransfer/artman_bigquerydatatransfer.yaml
+google/cloud/dataproc/artman_dataproc_v1.yaml
+google/cloud/dataproc/artman_dataproc_v1beta2.yaml
+google/cloud/dialogflow/artman_dialogflow_v2.yaml
+google/cloud/kms/artman_cloudkms.yaml
+google/cloud/language/artman_language_v1.yaml
+google/cloud/language/artman_language_v1beta2.yaml
+google/cloud/oslogin/artman_oslogin_v1.yaml
+google/cloud/oslogin/artman_oslogin_v1beta.yaml
+google/cloud/redis/artman_redis_v1beta1.yaml
+google/cloud/redis/artman_redis_v1.yaml
+google/cloud/speech/artman_speech_v1.yaml
+google/cloud/speech/artman_speech_v1p1beta1.yaml
+google/cloud/tasks/artman_cloudtasks_v2beta2.yaml
+google/cloud/tasks/artman_cloudtasks_v2beta3.yaml
+google/cloud/texttospeech/artman_texttospeech_v1.yaml
+google/cloud/videointelligence/artman_videointelligence_v1.yaml
+google/cloud/videointelligence/artman_videointelligence_v1beta1.yaml
+google/cloud/videointelligence/artman_videointelligence_v1beta2.yaml
+google/cloud/vision/artman_vision_v1.yaml
+google/cloud/vision/artman_vision_v1p1beta1.yaml
+google/container/artman_container.yaml
+google/devtools/artman_clouddebugger.yaml
+google/devtools/clouderrorreporting/artman_errorreporting.yaml
+google/devtools/cloudtrace/artman_cloudtrace_v1.yaml
+google/devtools/cloudtrace/artman_cloudtrace_v2.yaml
+google/devtools/containeranalysis/artman_containeranalysis_v1beta1.yaml
+google/firestore/artman_firestore.yaml
+google/logging/artman_logging.yaml
+google/longrunning/artman_longrunning.yaml
+google/monitoring/artman_monitoring.yaml
+google/privacy/dlp/artman_dlp_v2.yaml
+google/pubsub/artman_pubsub.yaml
+google/spanner/admin/database/artman_spanner_admin_database.yaml
+google/spanner/admin/instance/artman_spanner_admin_instance.yaml
+google/spanner/artman_spanner.yaml
+)
+
+for api in "${APIS[@]}"; do
+  rm -rf artman-genfiles/*
+  artman --config "$api" generate go_gapic
+  cp -r artman-genfiles/gapi-*/cloud.google.com/go/* $GOPATH/src/cloud.google.com/go/
+done
+
+#go list cloud.google.com/go/... | grep apiv | xargs go test
+
+#go test -short cloud.google.com/go/...
+
+#echo "googleapis version: $(git rev-parse HEAD)"