Added articles in markdown

Added all (missing) current articles of each quadrant.

radar/2017-03-01/dagger.md

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+---
+title:      "Dagger"
+ring:       adopt
+quadrant:   tools
+
+---
+
+[Dagger](https://google.github.io/dagger/) is a fully static, compile-time [dependency injection](http://en.wikipedia.org/wiki/Dependency_injection) framework for both Java and Android. [Dagger](https://google.github.io/dagger/) doesn't use reflections at runtime, it saves resources. For us, it is a perfect match for Android development.
+
+We at AOE use it as a base framework for every Android project.