Add kompose.image-pull-secret and kompose.image-pull-policy

[kiela]

This PR is a rebase of #1040 on top of the latest master.

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[kiela]

/assign @sebgoa

[kiela]

/cc @cdrage

[cdrage]

Sorry about the delay! I've reviewed the code and it looks good. Thank you for adding all the tests as well.

I'm just waiting for the SemaphoreCI integration tests to pass and then we'll be able to merge. At the moment I have to manually run the tests due to issues with SemaphoreCI not being granted access to the Kubernetes org.

Many thanks

[cdrage]

Hey @kiela are you able to rebase?

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[kiela]

Sure thing @cdrage!

[kiela]

Hi @cdrage, any chance to get this merged in?

[cdrage]

/lgtm

[cdrage]

@kiela No changes to the code! This looks great. Thanks for your contribution.

I should have a release pushed for next week 💯