Add project stars.

Created by: cirosantilli

Fix ACCEPTING MR at http://feedback.gitlab.com/forums/176466-general/suggestions/4518904-star-a-project-to-show-it-at-the-top-of-your-dashb points 1. and 2.

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Implementation notes

Ignoring "Use nested module/class definitions instead of compact style." Hound warning as that style is used by all the rest of the API and recommended by Spinach itself. I propose we turn that warning off if possible.