additions (from f-droid) and some link updates

entries/noiz2-droid.md

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+# noiz2-droid
+
+- Home: https://github.com/alistairrutherford/noiz2-droid
+- Inspiration: Noiz2
+- State: mature, inactive since 2015
+- Download: https://f-droid.org/de/packages/com.netthreads.android.noiz2/
+- Platform: Android
+- Keyword: action, 2D, shooter
+- Code repository: https://github.com/alistairrutherford/noiz2-droid.git
+- Code language: Java
+- Code license: 2-clause BSD
+- Developer: Alistair Rutherford
+
+## Building