Added articles in markdown

Added all (missing) current articles of each quadrant.

radar/2017-03-01/xataface.md

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+---
+title:      "Xataface"
+ring:       hold
+quadrant:   platforms-and-aoe-services
+
+---
+
+In the past, we used a custom-developed toolset with Xataface,T3Deploy and a settings migration tool as an easy way to manage TYPO3- and Magento-related configurations and to automatically create environments on our shared integration/dev-servers.
+
+Today, there is no advantage or need for Xataface. Don't use it anymore