Switch to dep & update dependencies

Switch to dep.

Update the following:
- azure-sdk-for-go to 10.2.1-beta
- go-autorest to 8.1.1
- client-go to 4.0.0

Signed-off-by: Andy Goldstein <andy.goldstein@gmail.com>

vendor/github.com/go-openapi/jsonreference/.drone.sec

@@ -1 +0,0 @@
-eyJhbGciOiJSU0EtT0FFUCIsImVuYyI6IkExMjhHQ00ifQ.Xe40Wx6g5Y-iN0JVMhKyFfubtOId3zAVE564szw_yYGzFNhc_cGZO9F3BtAcJ55CfHG9C_ozn9dpnUDl_zYZoy_6cPCq13Ekb95z8NAC3ekDtbAATsc9HZwRNwI7UfkhstdwxljEouGB01qoLcUn6lFutrou-Ho21COHeDb2caemnPSA-rEAnXkOiBFu0RQ1MIwMygzvHXIHHYNpNwAtXqmiggM10miSjqBM3JmRPxCi7VK6_Rxij5p6LlhmK1BDi8Y6oBh-9BX3--5GAJeWZ6Vof5TnP-Enioia18j8c8KFtfY4q0y6Ednjb-AarLZ12gj695ppkBNJUdTJQmwGwA.fVcz_RiLrUB5fgMS.rjWllDYC6m_NB-ket_LizNEy9mlJ27odBTZQcMKaUqqXZBtWUCmPrOoMXGq-_cc-c7chg7D-WMh9SPQ23pV0P-DY-jsDpbOqHG2STOMEfW9ZREoaOLJXQaWcuBldLjRyWFcq0HGj97LgE6szD1Zlou3bmdHS_Q-U9Up9YQ_8_YnDcESD_cj1w5FZom7HjchKJFeGjQjfDQpoCKCQNMJaavUqy9jHQEeQ_uVocSrETg3GpewDcUF2tuv8uGq7ZZWu7Vl8zmnY1MFTynaGBWzTCSRmCkAXjcsaUheDP_NT5D7k-xUS6LwtqEUiXAXV07SNFraorFj5lnBQZRDlZMYcA3NWR6zHiOxekR9LBYPofst6w1rIqUchj_5m1tDpVTBMPir1eAaFcnJtPgo4ch17OF-kmcmQGLhJI3U7n8wv4sTrmP1dewtRRKrvlJe5r3_6eDiK4xZ8K0rnK1D4g6zuQqU1gA8KaU7pmZkKpFx3Bew4v-6DH32YwQBvAI7Lbb8afou9WsCNB_iswz5XGimP4bifiJRwpWBEz9VGhZFdiw-hZpYWgbxzVb5gtqfTDLIvpbLDmFz1vge16uUQHHVFpo1pSozyr7A60X8qsh9pmmO3RcJ-ZGZBWqiRC-Kl5ejz7WQ.LFoK4Ibi11B2lWQ5WcPSag

vendor/github.com/go-openapi/jsonreference/.drone.yml

@@ -1,33 +0,0 @@
-clone:
-  path: github.com/go-openapi/jsonreference
-
-matrix:
-  GO_VERSION:
-    - "1.6"
-
-build:
-  integration:
-    image: golang:$$GO_VERSION
-    pull: true
-    commands:
-      - go get -u github.com/stretchr/testify/assert
-      - go get -u github.com/PuerkitoBio/purell
-      - go get -u github.com/go-openapi/jsonpointer
-      - go test -race
-      - go test -v -cover -coverprofile=coverage.out -covermode=count ./...
-
-notify:
-  slack:
-    channel: bots
-    webhook_url: $$SLACK_URL
-    username: drone
-
-publish:
-  coverage:
-    server: https://coverage.vmware.run
-    token: $$GITHUB_TOKEN
-    # threshold: 70
-    # must_increase: true
-    when:
-      matrix:
-        GO_VERSION: "1.6"

vendor/github.com/go-openapi/jsonreference/.pullapprove.yml

@@ -1,13 +0,0 @@
-approve_by_comment: true
-approve_regex: '^(:shipit:|:\+1:|\+1|LGTM|lgtm|Approved)'
-reject_regex: ^[Rr]ejected
-reset_on_push: false
-reviewers:
-  members:
-  - casualjim
-  - chancez
-  - frapposelli
-  - vburenin
-  - pytlesk4
-  name: pullapprove
-  required: 1

vendor/github.com/go-openapi/jsonreference/README.md

@@ -1,4 +1,4 @@
-# gojsonreference [![Build Status](https://ci.vmware.run/api/badges/go-openapi/jsonreference/status.svg)](https://ci.vmware.run/go-openapi/jsonreference) [![Coverage](https://coverage.vmware.run/badges/go-openapi/jsonreference/coverage.svg)](https://coverage.vmware.run/go-openapi/jsonreference) [![Slack Status](https://slackin.goswagger.io/badge.svg)](https://slackin.goswagger.io)
+# gojsonreference [![Build Status](https://travis-ci.org/go-openapi/jsonreference.svg?branch=master)](https://travis-ci.org/go-openapi/jsonreference) [![codecov](https://codecov.io/gh/go-openapi/jsonreference/branch/master/graph/badge.svg)](https://codecov.io/gh/go-openapi/jsonreference) [![Slack Status](https://slackin.goswagger.io/badge.svg)](https://slackin.goswagger.io)
 
 [![license](http://img.shields.io/badge/license-Apache%20v2-orange.svg)](https://raw.githubusercontent.com/go-openapi/jsonreference/master/LICENSE) [![GoDoc](https://godoc.org/github.com/go-openapi/jsonreference?status.svg)](http://godoc.org/github.com/go-openapi/jsonreference)
 An implementation of JSON Reference - Go language
@@ -7,7 +7,7 @@ An implementation of JSON Reference - Go language
 Work in progress ( 90% done )
 
 ## Dependencies
-https://github.com/xeipuuv/gojsonpointer
+https://github.com/go-openapi/jsonpointer
 
 ## References
 http://tools.ietf.org/html/draft-ietf-appsawg-json-pointer-07