Extension:QuickSurveys

QuickSurveys is an extension for showing in-article banners, in order to ask users so that we can gather opinions and feedback on different matters.

For the moment in the initial scope there's two types of banners being set up: See https://phabricator.wikimedia.org/T104439 for the main phabricator task.
 * Quick survey: Small banner with a question and multiple answers. Answerable in-wiki. Results logged to EventLogging.
 * External survey: Small banner with a link to an external survey.

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This extension is in development, no further instructions yet.