Use machine API types

[JoshVanL]

What this PR does / why we need it: This PR implements the Machine API types taken from the Kubernetes Cluster API project. This introduces MachineDeployments and MachineSets as well as Machine, essentially renamed from Instances. Two new controllers are added to the API server that manage the behavior of Machine deployments and sets.

Every instance pool now has a corresponding deployment, and consequently a set, created to manage the machines in that pool.

This PR helps to implement ground work to further extend wing features such as puppet dry runs.

NOTE: wing-dev-mode must be run with this branch since wing and it's types have been heavily modified.

Change wing API types to use ones similar to Kubernetes Cluster API

[jetstack-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[JoshVanL]

Should be ready for a first round of reviews /assign @simonswine

[JoshVanL]

/test verify docs

[JoshVanL]

/test verify quick

[JoshVanL]

/test verify docs

[JoshVanL]

/test verify docs

[JoshVanL]

/test verify quick

[JoshVanL]

/unassign @simonswine /assign

[jetstack-bot]

@JoshVanL: PR needs rebase.

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[simonswine]

/hold

I would not like to include this 0.6 release

[jetstack-bot]

@JoshVanL: The following test failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
tarmak-puppet-module-tarmak-acceptance-1-14-centos	8222615f3f4b8c788d9a71cc6499e2f3866771d4	link	/test puppet-tarmak-acceptance-centos v1.14

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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