VMware vSphere Integrated Containers provider (#206)

* Add Virtual Kubelet provider for VIC

Initial virtual kubelet provider for VMware VIC.  This provider currently
handles creating and starting of a pod VM via the VIC portlayer and persona
server.  Image store handling via the VIC persona server.  This provider
currently requires the feature/wolfpack branch of VIC.

* Added pod stop and delete.  Also added node capacity.

Added the ability to stop and delete pod VMs via VIC.  Also retrieve
node capacity information from the VCH.

* Cleanup and readme file

Some file clean up and added a Readme.md markdown file for the VIC
provider.

* Cleaned up errors, added function comments, moved operation code

1. Cleaned up error handling.  Set standard for creating errors.
2. Added method prototype comments for all interface functions.
3. Moved PodCreator, PodStarter, PodStopper, and PodDeleter to a new folder.

* Add mocking code and unit tests for podcache, podcreator, and podstarter

Used the unit test framework used in VIC to handle assertions in the provider's
unit test.  Mocking code generated using OSS project mockery, which is compatible
with the testify assertion framework.

* Vendored packages for the VIC provider

Requires feature/wolfpack branch of VIC and a few specific commit sha of
projects used within VIC.

* Implementation of POD Stopper and Deleter unit tests (#4)

* Updated files for initial PR

vendor/github.com/vmware/govmomi/README.md

@@ -0,0 +1,86 @@
+[![Build Status](https://travis-ci.org/vmware/govmomi.png?branch=master)](https://travis-ci.org/vmware/govmomi)
+[![Go Report Card](https://goreportcard.com/badge/github.com/vmware/govmomi)](https://goreportcard.com/report/github.com/vmware/govmomi)
+
+# govmomi
+
+A Go library for interacting with VMware vSphere APIs (ESXi and/or vCenter).
+
+In addition to the vSphere API client, this repository includes:
+
+* [govc](./govc) - vSphere CLI
+
+* [vcsim](./vcsim) - vSphere API mock framework
+
+* [toolbox](./toolbox) - VM guest tools framework
+
+## Compatibility
+
+This library is built for and tested against ESXi and vCenter 6.0 and 6.5.
+
+It should work with versions 5.5 and 5.1, but neither are officially supported.
+
+## Documentation
+
+The APIs exposed by this library very closely follow the API described in the [VMware vSphere API Reference Documentation][apiref].
+Refer to this document to become familiar with the upstream API.
+
+The code in the `govmomi` package is a wrapper for the code that is generated from the vSphere API description.
+It primarily provides convenience functions for working with the vSphere API.
+See [godoc.org][godoc] for documentation.
+
+[apiref]:http://pubs.vmware.com/vsphere-6-5/index.jsp#com.vmware.wssdk.apiref.doc/right-pane.html
+[godoc]:http://godoc.org/github.com/vmware/govmomi
+
+## Installation
+
+```sh
+go get -u github.com/vmware/govmomi
+```
+
+## Discussion
+
+Contributors and users are encouraged to collaborate using GitHub issues and/or
+[Slack](https://vmwarecode.slack.com/messages/govmomi).
+Access to Slack requires a [VMware {code} membership](https://code.vmware.com/join/).
+
+## Status
+
+Changes to the API are subject to [semantic versioning](http://semver.org).
+
+Refer to the [CHANGELOG](CHANGELOG.md) for version to version changes.
+
+## Projects using govmomi
+
+* [Docker Machine](https://github.com/docker/machine/tree/master/drivers/vmwarevsphere)
+
+* [Docker InfraKit](https://github.com/docker/infrakit/tree/master/pkg/provider/vsphere)
+
+* [Docker LinuxKit](https://github.com/linuxkit/linuxkit/tree/master/src/cmd/linuxkit)
+
+* [Kubernetes](https://github.com/kubernetes/kubernetes/tree/master/pkg/cloudprovider/providers/vsphere)
+
+* [Kubernetes kops](https://github.com/kubernetes/kops/tree/master/upup/pkg/fi/cloudup/vsphere)
+
+* [Terraform](https://github.com/terraform-providers/terraform-provider-vsphere)
+
+* [Packer](https://github.com/jetbrains-infra/packer-builder-vsphere)
+
+* [VMware VIC Engine](https://github.com/vmware/vic)
+
+* [Travis CI](https://github.com/travis-ci/jupiter-brain)
+
+* [collectd-vsphere](https://github.com/travis-ci/collectd-vsphere)
+
+* [Gru](https://github.com/dnaeon/gru)
+
+* [Libretto](https://github.com/apcera/libretto/tree/master/virtualmachine/vsphere)
+
+## Related projects
+
+* [rbvmomi](https://github.com/vmware/rbvmomi)
+
+* [pyvmomi](https://github.com/vmware/pyvmomi)
+
+## License
+
+govmomi is available under the [Apache 2 license](LICENSE).