Migrate changes to upstream sdk#1

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dkBrazz wants to merge 12 commits intocb-masterfrom

dynamic_content

Commits on Jul 2, 2020

list DynamicContent paged, getDynamicContentItemVariants by itemId
Denis Kurochkin
committed
Support Center Locales
Denis Kurochkin
committed

Commits on Jul 3, 2020

Sorting and Paging improvements
Denis Kurochkin
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Sections
Denis Kurochkin
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Categories
Denis Kurochkin
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Commits on Jul 6, 2020

Articles
Denis Kurochkin
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OAuth
Denis Kurochkin
committed

Commits on Jul 10, 2020

Get rid of iterables, and handle 404
Denis Kurochkin
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Get rid of unnecessary URL unescaping
Denis Kurochkin
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Smoke tests
Denis Kurochkin
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suppress unnecessary tests
Denis Kurochkin
committed
translations tests
Denis Kurochkin
committed