Implement a mechanism for embedding YAML addons into KubeOne binary

[xmudrii]

What this PR does / why we need it:

This PR implements a mechanism for embedding YAML addons into the KubeOne binary.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #1351

Does this PR introduce a user-facing change?:

Implement a mechanism for embedding YAML addons into KubeOne binary

/assign @kron4eg

[kubermatic-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[kubermatic-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: xmudrii

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[xmudrii]

/test all

[xmudrii]

/test all

[xmudrii]

/retest

[xmudrii]

/retest

[kubermatic-bot]

LGTM label has been added.

Git tree hash: d475c4f9c349cc502e261628f50daed1e30c0786

[kubermatic-bot]

@xmudrii: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
pull-kubeone-lint	fcea437	link	/test pull-kubeone-lint

Full PR test history

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