Integration tests were running long because we'd wait up to 22 minutes for SSH to succeed while creating the host. This commit introduces a two minute timer on creating the host. On my Macbook Pro with the docker driver, creating the host takes 5 seconds, so 2 minutes should be more than enough time.

Refer to #6608

* Bump go-containerregistry to latest
Signed-off-by: Nsayboras <sayboras@yahoo.com>

* Fix integration for cache image

* Separate cached kubernetes binaries by OS on host machine

This way, all kubernetes binaries stored in ~/.minikube/cache/linux will be copied over to the VM and used for `minikube kubectl` on linux machines. kubectl will be stored in `~/.minikube/cache/{windows or darwin}` on windows/darwin so that `minikube kubectl` still works.

* Review comment

* Update integration test

* Make sure --download-only includes OS specific kubectl

Update integration test to make sure we download
OS specific kubectl on darwin/windows when using --download-only flag

This way, all kubernetes binaries stored in ~/.minikube/cache/linux will be copied over to the VM and used for `minikube kubectl` on linux machines. kubectl will be stored in `~/.minikube/cache/{windows or darwin}` on windows/darwin so that `minikube kubectl` still works.

* Refactor: add the docker vars after the shell vars

* Move shell handling functions to separate package

* Rename env source file to docker-env like command

* Add podman-env for connecting with podman-remote

* Remove leading Shell prefix from the shell package

* Add some documentation describing podman service

* Address some podman-env issues pointed out by lint

I was wondering why I had "invalid version" in my cache dir.

The downloads should probably be mocked, would be faster too ?

* fix startHost in order to be able to  start VM even if machine does not exist

* Update func StartHost() and its unit test no to use config.GetMachineName()

* Add handle case when the kic image isn't pulled

* Create and manager Hyper-V switch
* Adds new flag for Hyper-V driver
* Move switch creation out of chooseSwitch
Signed-off-by: NZhongcheng Lao <Zhongcheng.Lao@microsoft.com>

And add a missing test for ImageExists function